JP5053973B2 - Unit building - Google Patents

Description

  The present invention relates to a unit building.

  In the unit building, as described in Patent Document 1, pins are joined based on the column base of a building unit made of a frame structure in which columns and beams are welded.

  In addition, as described in Patent Document 2, a trapezoidal reinforcing frame is provided between the ceiling beam and the floor beam in order to reinforce the frame rigidity of the building unit composed of the rigid frame structure formed by rigidly connecting the column and the beam. There is something to provide.

  Further, as described in Patent Document 3, in a unit building, a plate is placed between the upper floor beam and the lower floor ceiling beam between the upper and lower building units, and the plate and the beam are fastened with bolts. There are things that try to prevent floor deflection.

  Further, as described in Patent Document 4, in the unit building, the floor beam of the upper floor building unit and the ceiling beam of the lower floor building unit are substantially in the center, and the webs are connected via a coupling plate. Some are combined to try to improve the rigidity of the floor and ceiling beams.

  Moreover, as a joint structure of unit buildings, as described in Patent Document 5, there is one that joins pipe columns arranged side by side with a gap between adjacent building units. The joint structure of Patent Document 5 includes a first nut member provided on one tube column, a second nut member provided opposite to the first nut member and provided on the other tube column, and both tubes. It is comprised from the screw member screwed together in both nut members in the clearance gap between pillars, and the round pipe-shaped spacer covered on the screw member between the clearance gaps between both pipe pillars.

In addition, as a unit building that enables the formation of a wide continuous space with no columns, as described in Patent Document 6, the column omission corners determined for each adjacent building unit are arranged to face each other at the column omission joints. Provide a reinforcing beam that extends from the ceiling beam side of the building unit on one side to the ceiling beam side of the other building unit, and one end of the reinforcing beam extends around the column of the building unit on one side. And the other end of the reinforcing beam is joined around the pillar of the building unit on the other side.
JP-A-8-302823 (3 pages, Fig. 2) JP 8-99689 51-45847 Patent 3330409 JP-A-6-49911 Patent 3260266

  In the prior art of Patent Document 1, since the rigidity of the beam is small, even if the cross section of the column is strengthened, the column base rotates with respect to the foundation, and the horizontal rigidity of the building does not increase. For this reason, it is necessary to add a middle pillar to the wall surface or to add a horizontal brace to the ceiling surface, which causes a restriction on the plan of the building and a high cost.

  Further, in Patent Document 2, a trapezoidal reinforcement frame is provided between the ceiling beam and the floor beam of the building unit, and the reinforcement frame becomes a complex member in which diagonal members are joined in advance to both ends of the horizontal member. The horizontal material of the reinforcing frame overlaps the ceiling beam of the building unit.

  Further, in Patent Documents 3 and 4, the upper and lower beams (floor beam and ceiling beam) are merely joined to each other at an intermediate portion between them, and the rigidity of the two beams is enhanced to withstand the vertical load. There is no reasonable consideration to improve the strength of the building unit and to improve the strength against horizontal loads.

Further, the joint structure of Patent Document 5 has the following problems.
(1) A first nut member is welded to a tube column of one building unit of adjacent building units in advance at the factory, and a screw member is screwed to the first nut member and attached in a protruding state. Therefore, productivity is poor and handling of the building unit at the transportation and storage stage is poor.

  (2) At the construction site, the other building unit cannot be installed close to one building unit unless the spacer is put on the screw member of one building unit, and the building unit is poorly installable. .

  (3) The spanner that rotates the second nut member screwed into the screw member is a gap between both pipe pillars of adjacent building units, and further from the window provided in the spacer toward the second nut member. The nut member is poor in operability.

Moreover, the prior art of Patent Document 6 has the following problems.
(1) When a reinforcing beam is attached to a ceiling beam that intersects with a column-omitted corner in the same plane including the column-omitted joint of both building units, the reinforcing beam is moved from one building unit side to the other. It becomes a long beam across the building unit on the side, and material management and construction difficulties are great.

  (2) Reinforcement beams will be installed outside the ceiling beam, and extra space will be required around both building units. When installing another building unit on the side of both building units, it is necessary to provide a large gap sufficient to arrange the reinforcing beam between the other building units.

An object of the present invention is to easily reinforce strength reduction caused by omission of a column in a unit building that forms a wide continuous space in which the column is omitted.

According to the first aspect of the present invention, the column omission corner portion defined in each of a plurality of adjacent building units is rigidly joined based on the column base of the building unit in which the column, the floor beam and the ceiling beam are joined, and the column omission joint portion is provided. Columns of building units that are adjacent to each other and that have ceiling beams that intersect with the column-omission corners in the same plane including the column-omission joints of adjacent building units are used as joint ceiling beams. It is a unit building formed by joining the jointed ceiling beams facing each other at the omitted joint part, and in each of the above adjacent building units, the end face of the jointed ceiling beam at the end of the column omitted corner part side. The end plate is welded, and the joint piece provided on the other ceiling beam that intersects the joint ceiling beam at the corner where the column is omitted is welded to the end of the joint ceiling beam . Some are end play Along the periphery of the bets is obtained by the so that the a notched notched portion.
According to a second aspect of the invention, in the first aspect of the invention, the joint ceiling beam is made of a C-shaped steel with a lip.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the end plates of the jointed ceiling beams of the adjacent building units are joined to each other.
According to a fourth aspect of the present invention, in the third aspect of the present invention, the end plates are joined together via a spacer.

In the invention of claim 5 , the column omission corner portion defined in each of a plurality of adjacent building units is rigidly joined based on the column base of the building unit in which the column, the floor beam and the ceiling beam are joined, and the column omission joint portion is provided. Auxiliary ceilings that have lower cross-sectional strength than other ceiling beams for ceiling beams that are arranged to face each other in the same plane including the column-omitted joints of adjacent building units. A beam that extends from the side of the auxiliary ceiling beam of the building unit on one side of the column-omitted joint to the side of the auxiliary ceiling beam of the building unit on the other side, and is attached to these auxiliary ceiling beams. Provide one end of the connecting beam to the receiving part provided on the receiving beam joined to the column of the building unit on one side, and provide the other end of the connecting beam to the receiving beam joined to the column of the building unit on the other side. and a unit building formed by joining the receiving portion, said auxiliary ceiling beams against the pillar The one in which was set to a L-shaped cross-section beam along each of the lower edge and the side edge of the receiving portion provided on the receiving beam.
According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the receiving portion provided on the receiving beam joined to the column has a tapered shape that expands upward.
The invention of claim 7 is the invention of claim 5 or 6 , further comprising an end plate provided at both ends of the cross beam, and a stiffener provided at the center in the longitudinal direction.
According to an eighth aspect of the present invention, in the seventh aspect of the present invention, the crossing beam is provided with both side lip portions and a stiffener provided on the lip portion.
According to a ninth aspect of the present invention, in the eighth aspect of the present invention, an end plate of another ceiling beam joined to the auxiliary ceiling beam is joined to both side lip portions of the cross beam.

(Claims 1 to 4 )
(a) By connecting the joint ceiling beams that intersect the column omission corners in each of the adjacent building units, the joint ceiling beams are joined together like a long beam continuous across both building units. Realized. Therefore, the unit building without the pillar can be reinforced without using a long beam separate from the building unit, and the manageability and workability of the material are good.

( b ) The unit building can be reinforced by the joint ceiling beam itself, which is a part of the ceiling beam constituting the building unit, and there is no need to add a separate reinforcing member around the building unit. Even when another building unit is installed on the side of the building unit, there is no need to provide an installation gap for the reinforcing member between the other building units.

(Claims 5 to 9 )
(c) Among the ceiling beams of the building unit, the cross-sectional strength of the auxiliary ceiling beam to which the passing beam is attached is made to withstand the transport of the building unit, and is lower than the cross-sectional strength of other ceiling beams. The horizontal strength of the unit building and the strength against wind pressure are secured by the crossing beams, and the burden of the auxiliary ceiling beam with the crossing beam attached is small. Can be achieved.

  1 is a perspective view showing a unit building, FIG. 2 is a schematic perspective view showing a unit building, FIG. 3 is a perspective view showing a building unit, FIG. 4 is a schematic front view showing a building unit to which construction method I is applied, and FIG. Is a sectional view showing a specific structure of construction method I, FIG. 6 is a schematic front view showing a unit building to which construction method II is applied, FIG. 7 shows a specific structure of construction method II, (A) is a front view, (B ) Is a cross-sectional view, FIG. 8 is a diagram illustrating the principle of strengthening the rigidity of a beam of construction II, (A) is a schematic diagram illustrating the deformation state of the beam, (B) is a schematic diagram illustrating a beam unit model, and (C) is a ramen structure. 9 is a schematic diagram showing a body model, FIG. 9 is a diagram showing the principle of rigidity enhancement of a unit frame of construction method II, (A) is a schematic diagram showing a deformed state of a beam, (B) is a schematic diagram showing a frame structure model, FIG. Fig. 11 is a schematic diagram showing a joint structure of construction unit III of adjacent building units, and Fig. 11 is a main part of Fig. 10. FIG. 12 is a schematic view showing a joining example of a building unit, FIG. 13 shows a modified example of the construction method III, (A) is a plan view showing a joining portion of a lower floor building unit, and (B) is (A) ) Is a cross-sectional view taken along line B-B, FIG. 14 is a perspective view showing a perforated spacer, FIG. 15 is a modified example of the construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, B) is a cross-sectional view taken along line BB of (A), FIG. 16 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is (A). FIG. 17 shows a building unit to which construction method IV is applied, (A) is a front view showing the lowest floor building unit, and (B) is a front view showing the upper floor building unit. FIG. 18 is a schematic diagram showing the rigidity enhancement principle of the frame of construction method IV, FIG. 19 is a schematic diagram showing an example of rigidity enhancement of the frame of construction method IV, and FIG. 21 is a front view showing an example of diagonal material attachment in Method IV, FIG. 21 shows a lower edge attachment portion of the diagonal material, (A) is a front view, (B) is a cross-sectional view, and FIG. 23 is a cross-sectional view showing an intermediate part of the beam, FIG. 23 shows the unit building of Example 1 according to the construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a figure after reinforcement with the joint ceiling beam. Fig. 24 is a schematic plan view, Fig. 24B is a schematic side view of Fig. 24B, Fig. 24 is a plan view showing a joined state of both building units, Fig. 25 is a front view showing both building units before joining, and Fig. 26 is both building units. (A) is a front view in a state where the lip portion of the beam is omitted, (B) is a side view, FIG. 27 is a unit building of Example 2 according to construction method V, and (A) is a joint. 28 is a schematic plan view before reinforcement with a ceiling beam, (B) is a schematic plan view after reinforcement with a joint ceiling beam, and FIG. The unit building of Example 3 is shown, (A) is a schematic plan view before reinforcement with a joint ceiling beam, (B) is a schematic plan view after reinforcement with a joint ceiling beam, and FIG. FIG. 30 is a side view of FIG. 29, FIG. 31 shows a unit building of Example 5, (A) is a schematic plan view before reinforcement with a crossing beam, and (B) is a crossing. (C) is a schematic side view of (B), FIG. 32 is a perspective view showing both building units before installing the crossing beam, and FIG. 33 shows the receiving part of the crossing beam and the column. FIG. 34 is a sectional view taken along line XXXIV-XXXIV in FIG. 31 (B) showing a unit building in which a cross beam is installed, FIG. 35 shows a unit building of Example 6 according to construction method V, and FIG. Is a schematic plan view before reinforcement with a cross beam, (B) is a schematic plan view after reinforcement with a cross beam, FIG. FIG. 37 is a cross-sectional view taken along the line XXXVII-XXXVII in FIG. 35B showing the unit building where the cross beam is installed, and FIG. 38 is the unit of the seventh embodiment. FIG. 39 shows a building, (A) is a schematic plan view before reinforcement with a bridge beam, (B) is a schematic plan view after reinforcement with a bridge beam, and FIG. 39 is a perspective view showing both building units before installing the bridge beam, FIG. 40 is a cross-sectional view taken along the line XXXX-XXXX in FIG. 38B showing a unit building in which a cross beam is installed, FIG. 41 is a perspective view showing a guide collar used in the construction method V, and FIG. 43 is a schematic diagram showing a guide collar drawing-in procedure in the construction method V, FIG. 44 is a schematic diagram showing a guide collar drawing-out procedure in the construction method V, and FIG. 45 is a schematic plan view of a unit building of the first modification according to the construction method I. Fig. 46 shows Ken The unit is shown, (A) is a side view, (B) is a schematic view, FIG. 47 is a cross-sectional view showing the pillar and floor beam of the building unit, FIG. 48 shows the basic joint structure of the building unit, and (A) is a longitudinal section. FIG. 49 is a plan view, FIG. 49 is a plan view showing a horizontal connection structure of adjacent building units, FIG. 50 is a joint structure of a column base and a core of a building unit, and FIG. FIG. 51 is a longitudinal sectional view showing a basic joint structure of a building unit of Modification 2 according to Construction I, and FIG. 52 is a joint structure of a column base and a core of the building unit. (A) is a longitudinal sectional view, (B) is a plan view, FIG. 53 is a core, (A) is a longitudinal sectional view, (B) is a plan view, and FIG. FIG. 55 is a vertical view showing the basic joint structure of the building unit of Modification 3 according to construction method I. FIG. 56 is a plan view, FIG. 56 is a plan view, FIG. 57 is a plan view showing a modification of a foundation joint of a building unit, and FIG. 58 is a foundation structure. (A) is a plan view, (B) is a longitudinal sectional view, FIG. 59 is a plan view showing a modification of the foundation joint of the building unit, FIG. 60 is a plan view showing the foundation structure, and FIG. 61 is a building. FIG. 62 is a plan view showing a foundation structure, FIG. 63 is a sectional view showing a guide pin, and FIG. 64 is a perspective view showing a process of joining the column base to the foundation. 65 is a sectional view showing a modification of the guide pin, FIG. 66 is a longitudinal sectional view showing a basic joint structure of a building unit of Modification 4 according to Construction I, and FIG. 67 is an application priority of constructions I to IV in the unit building. It is a chart which shows.

  The unit building 1 shown in FIGS. 1 and 2 is constructed by supporting a lowermost floor building unit 20 on a foundation 10 and sequentially mounting upper floor building units 30 and 40 on the lowermost floor building unit 20. is there.

  That is, the unit building 1 is constructed by installing a plurality of building units 20, 30, 40 adjacent to each other in the horizontal direction and the vertical direction. As shown in FIG. 3, the building unit 20 (the building units 30 and 40) has a frame structure in which a square steel pipe tube column 21, a shaped steel floor beam 22, and a shaped steel ceiling beam 23 are joined in a box shape. Is the body. The building unit 20 is configured by welding the floor beam 22 to the lower end portion of the pipe column 21 via the joint piece 22J and welding the ceiling beam 23 to the upper end portion of the pipe column 21 via the joint piece 23J. The building unit 20 can omit the floor beam 22.

  The unit building 1 can constitute a middle-high-rise unit building such as a three-story building by stacking a plurality of building units 20 in the vertical direction. In addition, the unit building 1 is formed by joining a plurality of column-omitted building units adjacent to each other, with at least one corner portion of the building unit 20 as a column-omitted corner portion. It is also possible to configure a column omitting unit building formed by abutting and forming a column omitting joint.

  As shown in FIGS. 4 and 5, the foundation 10 fixes a steel foundation structure 13 to a solid concrete foundation 11 using anchor bolts 12, and a lower floor building unit 20 is placed on the foundation structure 13. To support.

  The lowermost floor building unit 20 is obtained by omitting the floor beam 22, and bridges the shape steel ceiling beam 23 between the upper ends of the four square steel pipe columns 21, and the end of the ceiling beam 23 is the column 21. This is a rigid frame structure that is rigidly joined to the upper end of the frame. The joint hardware 23J (FIG. 7) is welded to the upper end of the column 21, and the end of the ceiling beam 23 is welded to the joint hardware 23J. The lowermost floor building unit 20 may further include a shaped steel floor beam 22 spanned between the lower ends of the columns 21, and the end of the floor beam 23 may be rigidly joined to the lower ends of the columns 21. .

  The upper floor building unit 30 (same for 40) spans a section steel ceiling beam 33 (43) between the upper ends of four square steel pipe columns 31 (41), and the end of the ceiling beam 33 is connected to the column 31. A rigid frame structure constructed by rigidly joining the upper end of the column 31, bridging a section steel floor beam 32 (42) between the lower ends of the column 31, and rigidly joining the end of the floor beam 32 to the lower end of the column 31. Is the body. Joint hardware 33J (not shown) and 32J (FIG. 7) are welded to the upper end and lower end of the column 31, and the end portions of the ceiling beam 33 and the floor beam 32 are welded to the joint hardware 33J and 32J, respectively.

  In the unit building 1, between the lower floor building unit 20 and the upper floor building unit 30, the ceiling beam 23 of the lower floor building unit 20 and the floor beam 32 of the upper floor building unit 30 are arranged one above the other. Between the upper floor building unit 30 and the upper floor building unit 40, the ceiling beam 33 of the upper floor building unit 30 and the floor beam 42 of the upper floor building unit 40 are arranged one above the other.

  However, the unit building 1 is strengthened by applying each of the construction methods I, II, III, IV, and V.

Construction method I is foundation-column rigid joint structure,
Construction method II is a joint structure between upper and lower beams,
Construction method III is adjacent column joint structure,
Construction method IV is diagonal reinforcement structure,
Construction method V is a column omission reinforcement structure.

(Construction I: Foundation-column rigid joint structure) (Figs. 4 and 5)
The construction method I is applied between the foundation 10 and the lowermost floor building unit 20 (FIGS. 1 and 2), and is joined so that the column base 21F of the column 21 of the lowermost floor building unit 20 is not substantially displaced from the foundation 10. (FIG. 4).

  As shown in FIG. 5, the foundation 10 has an attachment metal 14 fixed to the upper end portion of the foundation structure 13 by welding, and a mounting bracket 24 fixed to the column base 21 </ b> F of the lowest floor building unit 20 by welding. The high strength bolts 15 are joined to the mounting hardware 14 so as not to be substantially displaced.

  According to the construction method I, in the unit building 1, the column base 21 </ b> F of the lowest floor building unit 20 is joined to the foundation 10 so as not to be substantially displaced, whereby the rotation of the column base 21 </ b> F with respect to the foundation 10 is suppressed, and the building unit 20 The horizontal rigidity of can be improved. In order to increase the horizontal rigidity of the building unit 20, it is not necessary to reinforce the cross section of the column 21, and it is not necessary to add a middle column or a horizontal brace, thereby increasing the degree of freedom in the plan of the building unit 20 and reducing the cost.

(Structure II: Vertical beam joint structure) (Figs. 6-9)
Construction II is performed between the ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30 and / or the ceiling beam 33 of the upper floor building unit 30 and the floor beam 42 of the upper floor building unit 40. (FIGS. 1 and 2). Hereinafter, application between the ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30 will be described.

  In order to strengthen the rigidity of the beam against the vertical load (floor load) of the ceiling beam 23 of the lowest floor building unit 20 and the floor beam 32 of the upper floor building unit 30, both ends of the ceiling beam 23 and the floor beam 32 are rigidly joined. It joins so that it may not shift | deviate substantially in part R1, R2 (FIG. 6).

  Further, in order to enhance the rigidity of the frame against the horizontal load of the lowest floor building unit 20 and the upper floor building unit 30, in addition to the rigid joints R1 and R2, the intermediate portion in the longitudinal direction of the top beam 23 and the floor beam 32 is used. (The central part in this embodiment) are joined together at the rigid joint R3 so as not to be substantially displaced (FIG. 6).

  The rigid joints R1 to R3 may be constituted by four wires as schematically shown in FIG. 6, but the plate 50 shown in FIG. 7 can be used. The plate 50 is attached to the web w of the ceiling beam 23 and the web w of the floor beam 32, and is provided with two high strength bolts 52, 52 on the web w of the ceiling beam 23 with two high strength bolts 51, 51. Fastened to the web w of the floor beam 32. Although the plate 50 of FIG. 7 shows what is pinched | interposed from the both sides by the ceiling beams 23 and 22 of the lowest floor building units 20 and 20 adjacent to right and left, and the floor beams 32 and 33 of the upper floor building units 30 and 30. The plate 50 may be provided with only one side attached to the ceiling beam 23 and floor beam 32 of each one building unit 20, 30. The plate 50 may be welded.

  The plate 50 is attached to the flange f of the ceiling beam 23 and the flange f of the floor beam 32, and is fastened to the flanges f and f by high-strength bolts or welding joints, so that the ceiling beam 23 and the floor beam 32 are substantially omitted. It may be joined so as not to shift.

  According to the construction method II, in the unit building 1, both ends of the two beams 23, 32, which are the floor beams 32 of the upper-floor building unit 30 and the ceiling beams 23 of the lower-floor building unit 20, which are vertically stacked, are rigidly connected. When the two beams 23 and 32 are bent and deformed under the action of a vertical load, the phase difference between both ends of the two beams 23 and 32 is suppressed by joining the joints R1 and R2 so that they are not substantially displaced. (FIG. 8A). As a result, the two beams 23 and 32 exhibit a cross-sectional performance α (I 1 + I 2) larger than the sum (I 1 + I 2) of the cross-sectional performances I 1 and I 2 of the beams 23 and 32, and the rigidity is enhanced. Can be improved. Note that it is not necessary to provide the rigid joint R3 in order to enhance the beam rigidity by the construction method II.

  The single beam model (FIG. 8 (B)) consisting of only two beams 23 and 32 has a proof stress of about 2.6 times that of the normal model to which the present invention is not applied. In the frame structure model (FIG. 8C) in which the columns 21 and 31 are rigidly joined to both ends of the two beams 23 and 32, the proof stress is 1.3 to 1.4 times that of the normal model. 8B and 8C, S provided between the central portion of the ceiling beam 23 and the floor beam 32 is a spacer that fills the gap between the ceiling beam 23 and the floor beam 32. The floor load acting on 32 can be transmitted to the ceiling beam 23.

  In the construction method II, in the unit building 1, two beams 23 arranged on top and bottom of two frame structures, which are the floor beam 32 of the upper floor building unit 30 and the ceiling beam 23 of the lower floor building unit 20. , 32 are joined together by rigid joints R1, R2 so that they are not substantially displaced, and the intermediate parts are joined together by rigid joints R3 so that they are not substantially displaced. When the two beams 23 and 32 are deformed into an S shape by the horizontal load P acting on the two, the phase difference between the both end portions and the intermediate portion of the two beams 23 and 32 is suppressed (FIG. 9A). Thereby, the frame intensity | strength of the building units 20 and 30 can expand, and the proof stress with respect to a horizontal load can be improved.

  The frame rigidity of the building units 20 and 30 according to the present invention is about 1.3 times that of a normal model to which the present invention is not applied (FIG. 9B).

  In the construction method II, the structure in which the floor beam 32 of the upper-floor building unit 30 and the ceiling beam 23 of the lower-floor building unit 20 are joined so as not to substantially deviate is connected to the web w of the floor beam 32 and the web w of the ceiling beam 23. It can be simply implemented using the plates 50 that follow or the plates 50 that follow the flanges f of the floor beams 32 and the flanges f of the ceiling beams 23. The one in which the plate 50 is attached to the web w can improve the frame strength of the building units 20 and 30.

(Structure III: Adjacent column joint structure) (FIGS. 10 to 16)
In the construction method III, the lower floor building units 20 and 20 are arranged side by side between the columns 21 and 21, the upper floor building units 30 and 30 are arranged side by side, and the upper floor building units 40 and 40 are arranged side by side. It is applied between the columns 41 and 41 (FIGS. 1 and 2).

  However, in the present embodiment, in the unit building 1 that constitutes the middle-high-rise unit building, the column omitting unit building, etc., in order to increase the horizontal rigidity of the unit building 1, a part of the unit building 1 as shown in FIG. The tube pillars 21 and 21 lined up with a gap between the adjacent building units 20 and 20 are bolted together as follows.

  As shown in FIG. 11, the adjacent column units 21, 21 of the building units 20, 20 adjacent to each other are shown in the following (1) to (3) at the three positions of the upper end, the lower end, and the middle. As shown in FIG.

  (1) Bolt insertion holes 61A and 61A are coaxially provided in the opposite side walls 21A and 21A of the adjacent column columns 21 and 21 of the adjacent building units 20 and 20, and the bolt insertion of one tube column 21 is performed. A bolt mounting operation hole 61B is provided on the side wall 21B on the back side of the side wall 21A provided with the hole 61A, and a nut mounting operation hole 61C is provided on the side wall 21B on the back side of the side wall 21A provided with the bolt insertion hole 61A of the other tube column 21. Provide. The bolt insertion holes 61A and 61A have the same diameter, and the bolt mounting operation hole 61B and the nut mounting operation hole 61C have the same diameter.

  (2) The adjacent building units 20 and 20 are installed on the foundation of the construction site, and the holes are arranged coaxially in the bolt insertion holes 61A and 61A provided in the opposite side walls 21A and 21A of the adjacent pipe columns 21 and 21. The spacer 60 is provided in a gap between the side walls 21A and 21A.

  (3) The bolt 61 inserted from the bolt mounting operation hole 61B provided in the side wall 21B of one of the tube columns 21 is connected to the bolt insertion holes 61A and 61A of both the tube columns 21 and 21, and the opposite side walls of both the tube columns 21 and 21. The holes are inserted into the bolt insertion holes 60A of the perforated spacer 60 provided in the gap between 21A and 21A. A nut 62 inserted from a nut mounting operation hole 61 </ b> C provided in the side wall 21 </ b> B of the other pipe column 21 is screwed to the bolt 61. The bolt 61 is a high-strength bolt, which is a torcia-type high-strength bolt in this embodiment, and a torcia tool is inserted from the nut mounting operation hole 61 </ b> C and the nut 62 is fastened to the bolt 61.

  Note that a high-strength hexagon bolt can be used as the bolt 61, and other bolts can also be used.

According to the present embodiment, the following operational effects can be obtained.
(a) It is possible to rationally increase the horizontal rigidity of the unit building 1 composed of the two building units 20 and 20 by combining the adjacent column units 21 and 21 of the building units 20 and 20 by bolting. it can. Accordingly, it is possible to reinforce the middle / high-rise floor unit building 1 such as a three-story building or the column omitting unit building 1.

  (b) At the factory production stage of the building unit 20, a bolt insertion hole 61 </ b> A and a bolt mounting operation hole 61 </ b> B are provided in the tube pillar 21 of one adjacent building unit 20, and the bolt is inserted into the tube pillar 21 of the other building unit 20. Only the hole 61A and the nut mounting operation hole 61C are provided, and the productivity is good, and the handling property of the building unit 20 in the transportation and storage stage is also good.

  (c) At the construction site, the other building unit 20 is installed close to the one building unit 20, and the spacers 60 are simply inserted between the side walls 21 </ b> A and 21 </ b> A of the pipe columns 21 of the building unit 20 side by side. The building unit 20 is easy to install and the spacer 60 is easy to assemble.

  (d) The installation tool of the bolt 61 and / or the nut 62 is operated using the bolt mounting operation hole 61B or the nut mounting operation hole 61C provided in the tube column 21, and the operability is good.

  (e) By using the high-strength bolts 61, the pipe columns 21 arranged side by side in the adjacent building units 20 can be strongly combined, and the horizontal rigidity of the unit building 1 can be improved.

  (f) By using the torcia-type high-strength bolt 61, the fastening operation of the bolt 61 and the nut 62 can be easily performed with a torcia tool.

  (g) By combining the adjacent column units 21 and 21 of the building units 20 and 20 with bolts at a plurality of positions at the upper end, the lower end, and the intermediate portion thereof, The horizontal rigidity of the unit building 1 can be further improved by strengthening.

  The horizontal rigidity of the unit building 1 according to the present invention shown in FIGS. 12B to 12D, in other words, the allowable horizontal load P with respect to the capital of the building unit 20 is that of the normal model to which the present invention is not applied (FIG. 12A). 1.2 to 1.9 times the allowable horizontal load Pa. FIG. 12B shows an example in which the tube pillars 21 and 21 are bolted at the upper end and the lower end, and P = 1.2 Pa. FIG. 12C shows the tube pillars 21 and 21 at the upper end, the lower end, and the intermediate portion. In this example, P = 1.7 Pa, and FIG. 12D shows an example in which the pipe columns 21 and 21 are bolted at three positions of the upper end portion, the lower end portion, and the intermediate portion, and P = 1.9 Pa. .

  FIG. 13 shows a cross-shaped perforated spacer 70 in the unit building 1 in which the corner portions of four building units 20 adjacent to each other are arranged to face each other and the upper building unit 30 is mounted on each building unit 20. This is an example of using construction method III. At this time, the pipe columns 21 of the four building units 20 are aligned with a cross-shaped gap, and the columns 31 of the four upper-floor building units 30 are also aligned with a cross-shaped gap. Moreover, between the building unit 20 corresponding to the upper and lower sides and the upper floor building unit 30, the ceiling beam 23 which is rigidly joined to the upper end part of the adjacent column 21 of the building unit 20 and is bridged between them, Floor beams 32 that are rigidly joined to the lower end portions of adjacent columns 31 of the floor building unit 30 and are spanned between them are stacked one above the other.

  As shown in FIG. 14, the perforated spacer 70 includes a girder direction plate 71 arranged along the girder direction, and a wife direction plate 72 arranged orthogonal to the lower half of the central portion along the girder direction of the girder direction plate 71. It consists of.

  The lower half of the spar direction plate 71 of the perforated spacer 70 is provided in a gap sandwiched between the opposing side walls 21A, 21A of the adjacent columns 21, 21 of the building units 20, 20 adjacent to each other in the wife direction. The bolt 61 inserted from the bolt mounting operation hole 61B provided in the side wall 21A of the column 21 is a gap between the bolt insertion holes 61A and 61A of the tube columns 21 and 21, and the side walls 21A and 21A of the tube columns 21 and 21. The nut 62 inserted through the nut insertion operation hole 61 </ b> C provided in the side wall 21 </ b> B of the other pipe column 21 is screwed to the bolt 61. Further, the end plate 72 of the perforated spacer 70 is provided in a gap between the opposing side walls 21A, 21A of the side-by-side pipe columns 21, 21 of the building units 20, 20 adjacent to each other in the spar direction. The bolt 61 inserted from the bolt mounting operation hole 61B provided in the side wall 21B of the tube column 21 is a gap between the bolt insertion holes 61A and 61A of both the tube columns 21 and 21 and the side walls 21A and 21A of both the tube columns 21 and 21. A nut 62 inserted through a nut insertion operation hole 61 </ b> C provided in the side wall 21 </ b> B of the other pipe column 21 is screwed into the bolt 61. As a result, the adjacent pipe columns 21 of the four building units 20 adjacent to each other are joined together by bolts, and the unit building 1 including these building units 20 is combined as in the embodiment of FIGS. The horizontal rigidity can be increased reasonably.

  The upper half of the spar direction plate 71 of the perforated spacer 70 extends upward from the lower half of the spar direction plate 71, and the adjacent column pillars 31 of the upper floor building units 30, 30 that are adjacent in the wife direction, The bolt 61 inserted through the bolt mounting operation hole 61B provided in the side wall 31B of the one pipe column 31 is provided in a gap between the opposite side walls 31A, 31A of the bolt 31 and the bolt insertion holes 61A of both the tube columns 31, 31 are provided. 61A and nuts provided in the side wall 31B of the other pipe column 31 through the bolt insertion holes 71B in the upper half of the spar direction plate 71 provided in the gap between the side walls 31A, 31A of the both pipe columns 31, 31 The nut 62 inserted from the mounting operation hole 61C is screwed to the bolt 61. As a result, the adjacent pipe columns 31 of the four upper-floor building units 30 adjacent to each other are combined by bolting, and the units including the upper-floor building units 30 are combined as in the embodiments of FIGS. 10 to 12. The horizontal rigidity of the building 1 can be increased reasonably.

  Further, in the unit building 1, one end portions of the ceiling beam 23 of the building unit 20 and the floor beam 32 of the upper floor building unit 30 that are arranged one above the other are connected to the tube columns 21 and 31 and the perforated spacer 70. Since they are joined together as described above via the girder direction plate 71, they can be joined so as not to substantially deviate as in the above-described construction method II between the other ends of the ceiling beam 23 and the floor beam 32. When the two beams 23 and 32 are bent and deformed under the action of a vertical load, the phase difference between both ends of the two beams 23 and 32 is suppressed. As a result, the two beams 23 and 32 exhibit a cross-sectional performance larger than the sum of the cross-sectional performances of the beams 23 and 32, are strengthened in rigidity, and can improve the proof strength against a vertical load. Further, when the two beams 23 and 32 are deformed into an S shape by a horizontal load acting on the pillar 31 of one building unit 30, the phase difference between the both end portions and the intermediate portion of the two beams 23 and 32 is suppressed. Thereby, the frame intensity | strength of the building units 20 and 30 can expand, and the proof stress with respect to a horizontal load can be improved. In the unit building 1, both the construction method II and the construction method III are applied, and the horizontal rigidity and the vertical rigidity of the unit building 1 can be strengthened together.

  In FIG. 13, among the four building units 20, the upper floor building unit 30 is mounted only on the upper part of the two building units 20 on one side in the girder direction, and the upper part of the other two building units 20 is the upper side. In the unit building 1 which is a lower house where the floor building unit 30 is not mounted, the girder direction plate 71 of the perforated spacer 70 is arranged on one side of the upper half as shown by a two-dot chain line in FIG. Excise.

  FIG. 15 is a modified example of FIG. 13, in the unit building 1 in which the corner portions of two building units 20 adjacent to each other are arranged to face each other and the upper floor building unit 30 is mounted on each building unit 20. This is an example in which the construction method III is applied using a flat perforated spacer 80.

  A lower half portion of a perforated spacer 80 is provided in a gap sandwiched between opposing side walls 21A, 21A of the adjacent pipe columns 21, 21 of the building units 20, 20 adjacent to each other. The lined column 21 and 21 are bolted together with a bolt 61 to construct the construction method III.

  Moreover, the upper half part of the perforated spacer 80 is provided in the clearance gap between the side walls 31A and 31A which the adjacent upper-floor building units 30 and 30 of the adjacent upper-floor building units 30 and 30 face each other, and is similar to the embodiment of FIG. In addition, the pipe columns 31 and 31 arranged side by side are bolted together with bolts 61 to construct the construction method III.

  Furthermore, a protrusion 81 in the lower half of the perforated spacer 80 is provided in the gap between the opposing joint pieces 23J and 23J of the adjacent pipe columns 21 and 21 of the adjacent building units 20 and 20, and the opposing joints are provided. The pieces 23J and 23J are bolted together by bolts 61. As a result, in the unit building 1, the end portions of the ceiling beam 23 of the building unit 20 and the floor beam 32 of the upper floor building unit 30 that are stacked one above the other are connected to the pillars 21 and 31 and the perforated spacer 80. Therefore, the construction method II can also be constructed by joining the other ends of the ceiling beam 23 and the floor beam 32 so as not to substantially deviate from each other.

  FIG. 16 is a modification example of FIG. 13, in the unit building 1 in which the corner portions of three building units 20 adjacent to each other are arranged to face each other and the upper-floor building unit 30 is mounted on each building unit 20. In this example, construction method III is applied using an L-shaped perforated spacer 90.

  The perforated spacer 90 includes a girder direction plate 91 disposed along the girder direction and a wife direction plate 92 disposed orthogonal to one longitudinal edge of the girder direction plate 91.

  In each of the wife direction and the girder direction, the girder direction plate 91 of the perforated spacer 90 and the wife direction plate are provided in the gap between the side walls 21A and 21A facing each other of the adjacent column columns 21 and 21 of the adjacent building units 20 and 20. A lower half portion 92 is provided, and in the same manner as in the embodiment of FIG.

  Further, in each of the wife direction and the spar direction, the spar direction plate 91 of the perforated spacer 90 is formed in a gap between the opposing side walls 31A, 31A of the adjacent column columns 31, 31 of the upper building units 30, 30 adjacent to each other. The upper half of the wife direction plate 92 is provided, and in the same manner as in the embodiment of FIG. 13, the juxtaposed pipe columns 31 and 31 are bolted together with bolts 61 to construct the construction method III.

  In the unit building 1, one end portions of the ceiling beam 23 of the building unit 20 and the floor beam 32 of the upper floor building unit 30 that are arranged one above the other are the tube columns 21 and 31 and the perforated spacer 90. Therefore, the construction method II can also be constructed by joining the other ends of the ceiling beam 23 and the floor beam 32 so that they do not substantially deviate from each other.

  In FIG. 16, among the three building units 20, the upper floor building unit 30 is mounted only on the upper part of the building unit 20 on one side of the wife direction, and the upper floor building unit 30 is mounted on the upper part of the other building units 20. In the unit building 1 which is not a house, the upper half of the end plate 92 of the perforated spacer 90 is cut away as shown by a two-dot chain line in FIG.

(Structure IV: diagonal reinforcement structure) (FIGS. 17 to 19)
Construction IV consists of the middle of the column base 21F and the ceiling beam 23 of the column 21 of the lowest floor building unit 20 and the middle of the column base 31F and the ceiling beam 33 of the column 31 of the upper floor building unit 30 (same 40). It is applied between the sections or between the column head 31H of the column 31 of the upper floor building unit 30 (40 is the same) and the middle section of the floor beam 32 (FIGS. 1 and 2).

  FIG. 17A shows an oblique member 101 provided between the column base 21 </ b> F of the column 21 of the lowest floor building unit 20 and the intermediate portion of the ceiling beam 23. The diagonal member 101 is pin-bonded to the column base 21F of the column 21 and the intermediate portion of the ceiling beam 23 (rigid bonding is also possible).

  FIG. 17B shows an oblique material 102 provided between the column base 31 </ b> F of the column 31 of the upper floor building unit 30 and the intermediate portion of the ceiling beam 33. The diagonal member 102 is pin-bonded to each of the column base 31F of the column 31 and the intermediate portion of the ceiling beam 33 (rigid bonding is also possible). Since the upper floor building unit 30 has the floor beam 32, the diagonal member 102 described above may be provided between the column head 31H of the column 31 and the intermediate portion of the floor beam 32.

  According to the construction method IV, in the unit building 1, the diagonal member 101 is provided between the column base 21 </ b> F of the lowest floor building unit 20 and the middle part of the ceiling beam 23, so that it is one corner of the frame of the frame structure. A right triangle formed by a part of the column 21 and the ceiling beam 23 together with the diagonal member 101 is defined as an indeformable body (undeformed truss). As a result, the apparent length L2 of the ceiling beam 23 in the building unit 20 (the deformed portion length L2 obtained by removing the undeformed truss portion L1 from the total length L of the ceiling beam 23) is shortened to enhance the frame rigidity, and the horizontal load The yield strength against P can be improved (FIG. 18).

  In addition, the diagonal member 102 is provided between the column base 31F of the upper-floor building unit 30 (40 is the same) and the intermediate portion of the ceiling beam 33 (or between the column head 31H and the intermediate portion of the floor beam 32), so that the ramen A right-angled triangle formed by a part of the column 31 and the ceiling beam 33, which is one corner of the frame of the structure, together with the diagonal member 102 is defined as an undeformed body (undeformed truss). As a result, the apparent length L2 of the ceiling beam 33 in the building unit 30 (the deformed portion length L2 obtained by removing the undeformed truss portion L1 from the total length L of the ceiling beam 33) is shortened to enhance the frame rigidity, and the horizontal load Strength against P can be improved.

  The above-mentioned non-deformable body (non-deformable truss) with a simple configuration in which the diagonal members 101 and 102 are added while making use of the frame of the column 21 and the beam 23 and the frame of the column 31 and the beams 32 and 33. The above-described frame rigidity can be easily enhanced.

  By simply connecting the diagonal members 101 and 102 to the columns 21 and 31 and the beams 23 and 33 (32), the above-mentioned indeformable body (undeformed truss) is easily formed at one corner of the frame of the rigid frame structure. It is possible to simplify the attachment of the diagonal members 101 and 102.

  Since the frame rigidity is reinforced only by the diagonal members 101 and 102, it is possible to form a relatively large opening without causing much trouble in the formation of the opening in the frame structure such as the building unit 20 or 30.

  The frame rigidity of the building units 20, 30 (same for 40) according to the present invention is 1.3 to 2.0 times that of a normal model to which the present invention is not applied. In the building unit 20 and the building unit 30 (same for 40), the positions where the diagonal members 101, 102 are joined to the ceiling beam 23 of the building unit 20 and the ceiling beam 33 of the building unit 30, in other words, the length of the undeformed truss portion L1. When the height is set to 450 mm and 900 mm, the allowable horizontal load Pa of the building units 20 and 30 is as shown in FIG. 19 with respect to the allowable horizontal load Pa (1300 kg and 900 kg) of the normal model not using the diagonal members 101 and 102. The building unit 20 expands to 1550 kg and 1700 kg, and the building unit 30 expands to 1200 kg and 1400 kg.

  As shown in FIG. 19, in the lowest floor building unit 20, left and right diagonal members 101, 101 may be provided between the column bases 21 </ b> F of the left and right columns 21 and the left and right intermediate portions of the ceiling beam 23. good. Also in the upper floor building unit 30 (40 is the same), the left and right columns 31F (or column heads 31H) and the left and right intermediate portions of the ceiling beam 33 (or floor beam 32) are respectively left and right. The diagonal members 102 and 102 may be provided. According to this, the left and right diagonal members 101, 101, 102, 102 are joined to the ceiling beam 23 of the lowermost floor building unit 20 and the ceiling beam 33 of the upper floor building unit 30, and the undeformed truss portion L1 is formed. Even if the length is as short as 450 mm, for example, the allowable horizontal load Pa of the building units 20 and 30 can be greatly increased to 2050 kg and 1800 kg.

  20 to 22 are specific attachment examples of the diagonal member 101 (same for 102) in the construction method IV. The building unit 20 (30, 40 is the same) is an example including a floor beam 22, and a reinforcing frame 25 including the diagonal member 101 is fitted between the floor beam 22 and the ceiling beam 23.

  The reinforcing frame 25 includes a reinforcing column 26 attached to the column 21 and an intermediary column 27. The lower end portion of the diagonal member 101 is joined to a mounting plate 26A extending horizontally from the lower end portion of the reinforcing column 26 by welding or the like. At the same time, the upper end portion of the diagonal member 101 is joined to the side surface on the upper end side of the intermediate column 27 by welding or the like, and the connecting beam 28 is bridged between the lower end side intermediate portion of the diagonal member 101 and the lower end side intermediate portion of the intermediate column 27. The connecting beam 29 is bridged between the upper end side intermediate portion of the reinforcing column 26 and the upper end side intermediate portion of the reinforcing column 26.

  The reinforcing frame 25 is bolted to a joint piece 22J that joins the reinforcing column 26 and the lower end of the diagonal member 101 to the column base 21F of the column 21, and extends horizontally from the upper end of the reinforcing column 26. The mounting plate 26 </ b> B is bolted to a joint piece 23 </ b> J that is joined to the head 21 </ b> H of the pillar 21. At this time, the floor beam reinforcement metal fitting 103 having an L-shaped cross section is welded to the upper flange of the floor beam 22 and the inner surface of the web that are attached to the joint piece 22J, and the mounting plate 26A of the diagonal member 101 is seated on the joint piece 22J. The floor beam reinforcement hardware 103, the floor beam 22, the joint piece 22J, the bolt 104 inserted through the mounting plate 26A, and the nut 104A are joined.

  The reinforcing frame 25 is bolted at the lower end of the stud 27 to the upper flange of the floor beam 22 and is bolted at the upper end of the stud 27 to the lower flange of the ceiling beam 23. At this time, the ceiling beam reinforcing metal 105 having a C-shaped cross section is welded between the upper and lower flanges of the ceiling beam 23 to which the upper end portion of the stud 27 is bolted.

  In this embodiment, “joining so as not to substantially deviate” means “joining so that the joining part maintains a rectangular shape”, “joining so that the overlapping portions of the upper and lower beams do not deviate”, and the like. Including rigid joints, but also weaker joints than rigid joints. Further, the joining between the end portions of the beam includes joining in the vicinity of the end portion.

(Structure V: Column omission reinforcement structure) (FIGS. 23 to 34)
The construction method V is applied at the column omitted corner portion of the building unit 20 (same for 30 and 40) (FIGS. 1 and 2).

Example 1 (FIGS. 23 to 26)
The unit building 1A in FIG. 23 is a part of the unit building 1 in FIGS. 1 and 2, and is constructed by installing a plurality of building units 20 adjacent to each other in the left-right and up-down directions. A large continuous space in which the columns are omitted is formed by the four column-omitted building units 120.

  As shown in FIG. 3, the building unit 20 typically includes four square steel pipe columns 21, four shape steel floor beams 22, and four shape steel ceiling beams 23. It is a framework structure joined to the shape. In the building unit 20, the floor beams 22 that intersect each other are connected to the lower end portion of the column 21 by the joint piece 22J at the four corner portions, and the ceiling beams 23 that intersect each other are joined to the upper end portion of the column 22 by the joint piece 23J. Configured.

  As shown in FIGS. 24 and 25, the column omitting building unit 120 is obtained by omitting one of the four columns 21 of the standard building unit 20. In the column omitted building unit 120, the floor beam 22 is joined to the lower end portion of the column 21 by the joint piece 22J at the three corner portions other than the column omitted corner portion. The mutually intersecting floor beams 22 are joined to each other by the joint piece 22K. In the column-omitted building unit 120, the ceiling beam 23 of the ceiling beam 23 that intersects the column-omitted corner portion is used as the joint ceiling beam 121, and the other ceiling beam 23 is the standard ceiling. The standard ceiling beam 23 and the upper end of the column 21 are joined by a joint piece 23J, and the joint ceiling beam 121 and the upper end of the column 21 are joined by a joint piece 23K, and the joint ceiling beam 121 and the ceiling beam 23 are joined. Are joined by a joint piece 23L.

  In the column omitted building unit 120, the cross-sectional strength of the joint ceiling beam 121 is made higher than the cross-sectional strength of the other standard ceiling beams 23. The joint ceiling beam 121 is made of C-shaped steel with a lip, and an end plate 122 is welded to an end portion on the column omitted corner portion side, and the joint piece 23L welded to the end portion does not cover the end plate 122. As described above, a part of the side portion of the joint piece 23 </ b> L is cut out like the cutout portion 123 along the periphery of the end plate 122. In the column omitting building unit 120, the dimensional accuracy of the surface position of the end plate 122 is ensured with the column 21 joined by the joint piece 23K as the reference position in the longitudinal direction of the joint ceiling beam 121.

  In the column omitted building unit 120, a temporary column 124 is detachable at a column omitted corner portion. The temporary pillar 124 is detachably coupled to the joint piece 22K of the floor beam 22 and the joint pieces 23L of the ceiling beams 23, 121 by attaching / detaching means such as bolts and pins.

  In the unit building 1A, as shown in FIG. 23 (A), the column omission corner portion defined in each of the four column omission building units 120 (120A to 120D) is arranged in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

  Between the corresponding column-omitted building unit 120A and the column-omitted building unit 120B, the ceiling beam 23 that is arranged so as to intersect with the column-omitted corner portions in the same plane including the column-omitted joint portion 2 is connected to the above-described joint. The ceiling beam 121 is used (FIGS. 24 and 25). In this way, the end plates 122 of the joint ceiling beam 121 facing each other at the column omitting joints 2 of both the building units 120A and 120B are parallel to each other through a certain gap. Therefore, a spacer 110 having a thickness selected to accommodate the gap is sandwiched between the end plates 122 of the opposite joint ceiling beams 121 from above or from the side of the gap. In this embodiment, two spacers 110 are sandwiched between the upper and lower ends of the end plate 122. Then, the end plates 122 of the opposite joint ceiling beams 21 are rigidly joined together with the spacer 110 with the high-strength bolts 111 (FIG. 26). The high-strength bolt 111 is inserted into the bolt insertion hole 122A of the opposite end plate 122 and the bolt insertion hole 110A of the spacer 110, and a nut 112 is fastened to the insertion end. In this embodiment, two high-strength bolts 111 on the left and right sides are used for one spacer 110. For this reason, it is rigidly joined in the longitudinal direction of the joint ceiling beam 121 and is also rigidly joined in a direction orthogonal to the horizontal direction, resulting in a substantially perfect rigid joint as a whole. As the high-strength bolt 111, a torcia shape, a hexagonal bolt shape, or the like can be adopted.

  Also between the corresponding column-omitted building unit 120C and the column-omitted building unit 120D, the end plates 122 of the opposite joint ceiling beams 121 are connected together with the spacer 110 in the same manner as between the building unit 120A and the building unit 120B. Then, the high-strength bolt 111 is used for rigid joining.

  When the opposite end plates 122 of the joint ceiling beam 121 are joined between the corresponding building unit 120A and the building unit 120B, and between the building unit 120C and the building unit 120D, A temporary pillar 124 is installed. Then, after the end plates 122 of the jointed ceiling beam 121 facing each other are joined, the temporary pillar 124 is removed.

According to the present embodiment, the following operational effects can be obtained.
(a) By connecting the joint ceiling beams 121 intersecting the column omitted corners in each of the adjacent building units 120, the continuous ceiling beams 121 are continuous across the two building units 120. It was unified as follows. Therefore, without using a long beam separate from the building unit 120, the unit building 1A without the pillar can be reinforced, and the manageability and workability of the material are good.

  (b) The unit building 1A can be reinforced by the joint ceiling beam 121 itself which is a part of the ceiling beam 23 constituting the building unit 120, and there is no need to add a separate reinforcing member around the building unit 120. . Even when another building unit 20 is installed on the side of the building unit 120, there is no need to provide an installation gap for a reinforcing member between the other building units 20.

  (c) The joint ceiling beam 121 that reinforces the unit building 1A by crossing the column-omitted joint portion of the unit building 1A has a cross-sectional strength high enough to compensate for the strength reduction due to the omission of the column, and the other ceiling beams 23 By setting the cross-sectional strength to a standard level, the cross-sectional strength of all the ceiling beams 23 of the building unit 120 can be made necessary and sufficient for each, and the economy of structural strength can be achieved.

  (d) By joining the end plates 122 of the joint ceiling beams 121 of the adjacent building units 120 to each other with the high-strength bolts 111 via the spacers 110, the joint ceiling beams 121 can be easily joined together. The dimensional accuracy of the unit building 1A can be improved.

  (e) The temporary column 124 provided at the column omitted corner portion of the building unit 120 is not removed until the connection of the joint ceiling beam 121 is completed after the site installation of the building unit 120 through the factory manufacturing stage and the transportation storage stage. Therefore, the strength of the building unit 120 at the time of connection of the joint ceiling beam 121 is not lowered, the building strength at the construction stage can be sufficiently secured, and the workability is good.

(Example 2) (FIG. 27)
The unit building 1B of FIG. 27 forms a large atrium space together with the upper-floor building unit 30 on which two lower-floor building units 120 constituting a part thereof are mounted.

  The column omitted building unit 120 used in the second embodiment is different from the column omitted building unit 120 of the first embodiment in that two columns adjacent to each other in the digit direction of the four columns 21 of the standard building unit 20 are used. 21 is omitted, the two ceiling beams 23 along the wife direction are both jointed ceiling beams 121, the girder-direction ceiling beams 23 intersecting the jointed ceiling beams 121 are temporary beams 125, and the temporary beams 125 are bolts, pins, etc. The detachable means is detachably coupled to the free end portion of the joint ceiling beam 121 so as to be excised.

  In the unit building 1B, as shown in FIG. 27 (A), two columns omitted for each of the two column omitted building units 120 (120A, 120B) are omitted in a part of the lower floor portion. The corner portions are arranged to face each other at the column omission joint portions 2 and 3.

  As shown in FIG. 27B, between the column omitted building unit 120A and the column omitted building unit 120B, after joining the end plates 122 of the opposite joint ceiling beams 121 to each other, as shown in FIG. 124 is removed, and the temporary beam 125 is excised (simply removed).

  And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120. FIG. Since the upper floor building unit 30 forms an atrium space above the lower floor building unit 120, the floor beam 22 corresponding to the temporary beam 125 of the lower floor building unit 120 is not provided from the beginning, or is cut off after mounting. The

  In the unit building 1 </ b> B, a large atrium space extending from the lower-floor building unit 120 to the upper-floor building unit 30 can be formed while securing structural strength by the joint ceiling beam 121.

Example 3 (FIG. 28)
The unit building 1C of FIG. 28 forms a staircase space together with the upper floor building unit 30 on which two lower floor building units 120 constituting a part thereof are mounted.

  The column-omitted building unit 10 used in the third embodiment is different from the column-omitted building unit 120 of the first embodiment in that the girder-direction ceiling beam 23 intersecting the joint ceiling beam 121 is changed to the intersection with the joint ceiling beam 121. That is, the temporary beam 126A which is a part of the side beam and the remaining partial beam 126B are used. The temporary beam 126A is coupled to the free end portion of the joint ceiling beam 121 and the end portion of the partial beam 126B by an attaching / detaching means such as a bolt and a pin so that the beam can be cut off. An end portion of the partial beam 126B coupled to the temporary beam 126A is supported by a middle column 127 (not shown).

  In the unit building 1C, as shown in FIG. 28 (A), a column omitted corner portion defined in each of the two column omitted building units 120 (120A, 120B) is provided as a column in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

  Between the column omitted building unit 120A and the column omitted building unit 120B, as shown in FIG. 28B, after joining the end plates 122 of the opposite joint ceiling beams 121 to each other, as shown in FIG. 124 is removed and the temporary beam 126A is excised (simply removed).

  And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120. FIG. The upper floor building unit 30 is not provided with a part corresponding to the temporary beam 126A from the beginning of the floor beams 22 corresponding to the temporary beams 126A and the partial beams 126B of the lower floor building unit 120, or is cut off after mounting.

  In the unit building 1 </ b> C, a staircase space extending from the lower-floor building unit 120 to the upper-floor building unit 30 can be formed while securing structural strength by the joint ceiling beam 121.

Example 4 (FIGS. 29 and 30)
The unit building 1D of FIGS. 29 and 30 forms a wide continuous space in which the columns are omitted by the four column-omitted building units 120 on the lower floor as in the unit building 1A. The upper floor pillar-omitted building unit 130 is mounted on the upper floor, and a wide continuous space is formed by omitting the pillars by the four pillar-omitted building units 130 on the upper floor.

  Therefore, in the unit building 1D, the joint ceiling beam 121 of the column omitting building unit 120A on one side of the column omitting joint portion 2 on the lower floor is opposed to the joint ceiling beam 121 of the column omitting building unit 120B on the other side, The joint floor beam 131 of the column omitted building unit 130A on one side of the column omit joint part 2 on the upper floor is opposed to the joint floor beam 131 of the column omitted building unit 130B on the other side, and further the column omitted building unit on the lower floor. The joint ceiling beam 121 of 120A (120B) and the joint floor beam 131 of the column omitting building unit 130A (130B) on the upper floor are overlapped.

  Therefore, the joint-ceiling beam 121 and the joint-floor beam 131 of the column-omitted building units 120A and 130A on one side of the column-omitted joint 2 on the upper and lower floors, and the joint-ceiling beam 121 of the other column-omitted building units 120B and 130B The floor beams 131 are joined as follows.

  (1) A plate-shaped joint 141 and a V-shaped cross-section joint from the lower flange side of the joint-ceiling beam 121 of the column-omitted building unit 120A to the lower flange side of the joint-ceiling beam 121 of the column-omitted building unit 120B Extending material 142. The joint material 141 is attached to the inner surface of the lower flange of the jointed ceiling beam 121. The joint member 142 is attached to the lower flange of the joint ceiling beam 121, the lower part of the web, and the outer surface of the lower lip.

  The two high strength bolts 143 are inserted into the bolt insertion holes provided in the lower flanges of the joint members 141 and 142 and the joint ceiling beam 121 on one end side of the joint members 141 and 142, and the insertion end of the high strength bolt 143 is inserted. Tighten the nut 143A. The two high strength bolts 143 are also inserted into the bolt insertion holes provided in the lower flanges of the joint materials 141 and 142 and the joint ceiling beam 121 on the other end side of the joint materials 141 and 142, and the high strength bolt 143 is inserted. Tighten the nut 143A to the end. As a result, one end side of the joint members 141 and 142 is rigidly joined to the joint ceiling beam 121 of the column omitted building unit 120A, and the other end side of the joint members 141 and 142 is rigidly joined to the joint ceiling beam 121 of the column omitted building unit 120B. To do.

  (2) From the upper flange side of the joint ceiling beam 121 of the column-omitted building unit 120A to the upper flange side of the joint ceiling beam 121 of the column-omitted building unit 120B, the flat plate-shaped joint material 151 and the U-shaped cross-section joint Extending material 152. The joint material 151 is attached to the inner surface of the upper flange of the double joint ceiling beam 121. The joint material 152 is attached to the upper flange of the joint ceiling beam 121, the upper part of the web, and the outer surface of the upper lip.

  On one end side of the joint members 151 and 152, two high-strength bolts 153 are attached to the joint members 151 and 152, the upper flange of the joint ceiling beam 121, the lower flange of the joint floor beam 131 of the column-omitted building unit 130A, and its joint piece 131J. (A joint piece for connecting the short column 131C to the column omitted end of the joint beam 131) and a bolt insertion hole provided in each of the square washers 131A, and a nut 153A is tightened to the insertion end of the high strength bolt 153. Also on the other end side of the joint members 151 and 152, the two high strength bolts 153 are joined to the joint members 151 and 152, the upper flange of the joint ceiling beam 121, the lower flange of the joint floor beam 131 of the column omitting building unit 130B, and its joint piece. 131J (joint piece for connecting the short column 131C to the column omitted end of the joint beam 131) and the bolt insertion hole provided in each of the square washers 131A, and the nut 153A is tightened to the insertion end of the high strength bolt 153 . Thus, one end side of the joint members 151 and 152 is rigidly joined to the joint ceiling beam 121 and the joint floor beam 131 of the column omitting building units 120A and 130A, and the other end side of the joint members 151 and 152 is connected to the column omitting building unit 120B, It is rigidly joined to the joint ceiling beam 131 and the joint floor beam 131 of 130B.

  In the unit building 1D, the joint ceiling beam 132 of the column omitting building unit 130A on one side of the column omitting joint portion 2 on the upper floor and the joint ceiling beam 132 of the column omitting building unit 130B on the other side are provided. The joint members 141, 142, 151, and 152 in the above (1) and (2) are joined by the same joint materials.

  According to the present embodiment, the connecting ceiling beams 121 and 121 and the connecting floor beams 131 and 131 of the adjacent building units 120A and 130A and the building units 120B and 130B are connected to each other via the connecting materials 141, 142, 151, and 152. By rigidly joining the high-strength bolts 143 and 153, the joint ceiling beams 121 and the joint floor beams 131 can be easily joined, and the dimensional accuracy of the unit building 1D can be improved.

(Example 5) (FIGS. 31 to 34)
The unit building 1E of FIG. 31 is constructed by installing a plurality of building units 20 adjacent to each other in the left-right and up-down directions, but has a large continuous space in which the columns are omitted by the four column-omitted building units 120 constituting a part thereof. Is formed.

  As shown in FIG. 32, the pillar omitted building unit 120 is obtained by omitting one of the four pillars 21 of the standard building unit 20. The column-omitted building unit 120 is configured such that, at three corner portions other than the column-omitted corner portion, the crossing floor beam 22 is joined to the lower end portion of the column 21 by the joint piece 22J, and the crossing ceiling beam 23 is joined to the joint piece 23J. Are joined to the upper end portion of the column 21, and the crossed floor beams 22 are joined to each other by the joint piece 22 </ b> K, and the crossing ceiling beams 23 are joined to each other by the joint piece 23 </ b> K. .

  In the column omitting building unit 120, among the ceiling beams 23 crossing the column omitting corner portion, the ceiling beam 23 along the wife direction is an auxiliary ceiling beam 161 having a lower cross-sectional strength than the other standard ceiling beams 23. The column-omitted building unit 120 joins a short section steel receiving beam 162 to a joint piece 23J provided at the upper end portion of the column 21 at a corner portion adjacent to the column-omitted corner portion and the wife direction. A rectangular plate-shaped receiving portion 163 is welded to the distal end portion, and one end portion of the auxiliary ceiling beam 161 is welded to the lower edge and the side edge of the beam receiving surface 163A of the receiving portion 163. The auxiliary ceiling beam 161 is formed of an L-shaped cross-section beam along each of the lower edge and the side edge of the beam receiving surface 163A of the receiving portion 163. The beam receiving surface 163A of the receiving portion 163 provided on the receiving beam 162 joined to the column 21 has a tapered shape that expands upward.

  In the column omitted building unit 120, a temporary column 164 is detachable at a column omitted corner portion. The temporary pillar 164 is detachably coupled to the joint piece 22K of the floor beam 22 and the joint pieces 23K of the ceiling beams 23 and 161 by attaching and detaching means such as bolts and pins.

  In the unit building 1E, as shown in FIG. 31 (A), the pillar omitted corner portions defined in each of the four pillar omitted building units 120 (120A to 120D) are provided as pillars in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

  Between the corresponding column omitted building unit 120 </ b> A and the column omitted building unit 120 </ b> B, the ceiling beam 23 arranged in the same plane including both of the column omitted joint portions 2 and intersecting the column omitted corner portions is supplemented as described above. The ceiling beam 161 is used (FIG. 32). As shown in FIGS. 31 (B) and 31 (C), it extends from the auxiliary ceiling beam 161 side of the one column omitted building unit 120A to the auxiliary ceiling beam 161 side of the other column omitted building unit 120B, A transfer beam 170 attached to the auxiliary ceiling beams 161 is provided. One end portion of the cross beam 30 is joined to the receiving portion 163 of the receiving beam 162 joined to the column 21 of the one side column omitting building unit 120A, and the other end portion of the passing beam 170 is connected to the column of the other side column omitting building unit 120B. 21 to the receiving portion 163 of the receiving beam 162 joined to 21.

  The above-mentioned auxiliary beams are also provided between the corresponding column-omitted building unit 120C and the column-omitted building unit 120D so as to intersect with the column-omitted corner portions in the same plane including the column-omitted joint portions 2 of both. The ceiling beam 161 is used (FIG. 32). As shown in FIGS. 31 (B) and 31 (C), it extends from the auxiliary ceiling beam 161 side of one column-omitted building unit 120C to the auxiliary ceiling beam 161 side of the other column-omitted building unit 120D, A cross beam 30 attached to the auxiliary ceiling beams 161 is provided. One end portion of the cross beam 170 is joined to the receiving portion 163 of the receiving beam 162 joined to the column 21 of the one column omitting building unit 120C, and the other end portion of the passing beam 170 is connected to the column of the other column omitting building unit 120D. 21 to the receiving portion 163 of the receiving beam 162 joined to 21.

  At this time, as shown in FIGS. 32 to 34, the cross beam 170 is formed of a long hole, end plates 171 and 171 are welded to both ends thereof, and a stiffener 172 is welded to a central portion in the longitudinal direction. The cross beam 170 is inserted from above the auxiliary ceiling beam 161 and is attached in an L-shaped cross section formed by the lower flange 161A and the web 161B of the auxiliary ceiling beam 161.

  As described above, the beam receiving surface 163A of the receiving portion 163 of the receiving beam 162 bonded to the column 21 has a tapered shape that expands upward, and the bonding surface 171A of the end plate 171 of the cross beam 170 is the receiving portion. The taper-shaped receiving surface 163A of 163 is tapered so as to be fitted with the same taper angle.

  The end plate 171 of the cross beam 170 is rigidly joined to the receiving portion 163 of the receiving beam 162 joined to the column 21 by a high-strength bolt 173 such as a torcia shape. Both side lip portions of the central portion where the stiffener 172 of the cross beam 170 is provided are connected to the end plate 23E of the ceiling beam 23 in the girder direction which is joined to the auxiliary ceiling beam 161 via the joint piece 23K. It is rigidly joined with.

  As described above, the receiving beam 163 of the receiving beam 162 joined to the column 21 is connected between the column omitted building 120A and the column omitted building unit 120B, and between the column omitted building unit 120C and the column omitted building unit 120D. When joined, temporary pillars 164 are installed at the pillar omitted corner portions of the respective column omitted building units 120. Then, after the connecting beam 170 is completely joined to the receiving portion 163 of the receiving beam 162, the temporary column 164 is removed.

  In addition, the ceiling surface material 23B is provided in the ceiling beam 23 which the pillar omission building unit 120 opposes via the field edge 23A.

  Further, the building unit 30 constituting the upper floor portion is mounted on the upper part of the column omitting building unit 120, and the floor material 37 is provided on the floor beam 32 facing the upper floor building unit 30. The column base of the column 31 of the upper floor building unit 30 mounted at the center portion of the cross beam 170 is rigidly joined to the upper flanges on both sides of the center portion where the stiffener 172 of the cross beam 170 is provided by high strength hexagon bolts 175. The

According to the present embodiment, the following operational effects can be obtained.
(a) Among the ceiling beams 23 of the building unit 20, the cross-sectional strength of the auxiliary ceiling beam 161 to which the transfer beam 170 is attached is set to a level that can withstand the transportation of the building unit 120, and the cross-sectional strength of other ceiling beams 23 Low strength. The horizontal strength of the unit building 1E and the strength against wind pressure are ensured by the cross beam 170, and the burden of the auxiliary ceiling beam 161 to which the cross beam 170 is attached is small. The economy of structural strength can be achieved.

  (b) When the cross beam 170 is attached to the auxiliary ceiling beam 161 that intersects the column omitted corner portion in the same plane including the column omitted joint portion 2 of both building units 120, the connecting beam 170 is attached to the auxiliary ceiling beam. 161 is inserted from above into the L-shaped cross section of 161, and an extra installation space for the cross beam 170 is not required around both building units 120. Even when another building unit 20 is installed on the side of both building units 120, it is not necessary to provide an installation gap for the cross beam 170 between the other building units 20.

  (c) When joining the end of the cross beam 170 to the receiving portion 163 of the column 21 of the building unit 120, the joint surface 171A of the end of the cross beam 170 has the same taper angle as the beam receiving surface 163A of the receiving portion 163. Therefore, the insertion property of the cross beam 170 to the receiving portion 163 of the column 21 corresponding to each other in the adjacent building unit 120 is improved. Both ends of the transfer beam 170 are fitted and extended without any gap to the beam receiving surface 163A of the receiving portion 163 of the corresponding column 21, and the dimensional accuracy of the unit building 1E can be improved.

  (d) Since the end portion of the cross beam 170 is joined to the receiving portion 163 of the column 21 of the building unit 20 with the high-strength bolt 173, the joint strength of the cross beam 170 is increased and the structural strength of the unit building 1E is further increased. Can be strengthened.

  (e) The temporary column 164 provided at the column omitted corner portion of the building unit 120 is not removed until the connection of the transfer beam 170 is completed after the site installation of the building unit 120 through the factory manufacturing stage and the transportation storage stage. Therefore, the strength of the building unit 120 when the connecting beam 170 is connected is not lowered, the building strength at the construction stage can be sufficiently secured, and the workability is good.

Example 6 (FIGS. 35 to 37)
The unit building 1F in FIG. 35 forms a large atrium space by two upper and lower building units 20 and 30 constituting a part thereof.

  The column omitted building unit 120 used in the sixth embodiment is different from the column omitted building unit 120 of the fifth embodiment in that two columns adjacent to each other in the digit direction of the four columns 21 of the standard building unit 20 are used. 21 is omitted, the two ceiling beams 23 along the wife direction are both auxiliary ceiling beams 161, the girder-direction ceiling beams 23 intersecting the auxiliary ceiling beams 161 are temporary beams 165, and the temporary beams 165 are bolts, pins, etc. This means that it is detachably coupled to the free end portion of the auxiliary ceiling beam 161 by the attaching / detaching means.

  In the unit building 1F, as shown in FIG. 35 (A), two pillars omitted for each of the two pillar omitted building units 120 (120A, 120B) in a part of the lower floor portion. The corner portions are arranged to face each other at the column omission joint portions 2 and 3.

  Between the column omitted building unit 120A and the column omitted building unit 120B, as shown in FIGS. 35 (B) and 36, a connecting beam 170 is provided in the same manner as in the fifth embodiment, and the connecting beam 170 is replaced with the column omitted building unit 120A, After the joining to the receiving portion 163 of the receiving beam 162 joined to the column 21 of 120B is completed, the temporary column 164 is removed, and the temporary beam 165 is cut away (simply removed).

  And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120, as shown in FIG. Since the upper floor building unit 30 forms an atrium space above the lower floor building unit 20, the floor beam 32 corresponding to the temporary beam 165 of the lower floor building unit 20 is not provided from the beginning, or is cut off after mounting. The

  In the unit building 1 </ b> F, a large atrium space extending from the lower-floor building unit 20 to the upper-floor building unit 30 can be formed while ensuring structural strength by the transfer beams 170.

Example 7 (FIGS. 38 to 40)
A unit building 1G in FIG. 38 forms a staircase space by two upper and lower building units 20 and 30 constituting a part thereof.

  The column-omitted building unit 120 used in the seventh embodiment is different from the column-omitted building unit 120 of the first embodiment in that the girder-direction ceiling beam 23 intersecting the auxiliary ceiling beam 161 is crossed with the auxiliary ceiling beam 161. That is, the temporary beam 166A, which is a part of the side beam, and the remaining partial beam 166B are used. The temporary beam 166A is coupled to the free end portion of the auxiliary ceiling beam 161 and the end portion of the partial beam 166B by attaching and detaching means such as bolts and pins so that the temporary beam 166A can be cut off. An end portion of the partial beam 166B coupled to the temporary beam 166A is supported by the middle column 167.

  In the unit building 1G, as shown in FIG. 38 (A), the column omission corner portion defined in each of the two column omission building units 120 (120A, 120B) is arranged in a part of the lower floor portion. The abbreviated joints 2 are arranged to face each other.

  As shown in FIGS. 38 (B) and 39, between the column omitted building unit 120A and the column omitted building unit 120B, a connecting beam 170 is provided in the same manner as in the fifth embodiment, and the connecting beam 170 is replaced with the column omitted building unit 120A, After the joining to the receiving portion 163 of the receiving beam 162 joined to the column 21 of 120B is completed, the temporary column 164 is removed and the temporary beam 166A is cut (simply removed).

  And the building unit 30 which comprises an upper floor part is mounted in the upper part of the pillar omission building unit 120, as shown in FIG. The upper floor building unit 30 does not provide a part corresponding to the temporary beam 166A from the beginning of the floor beams 22 corresponding to the temporary beams 166A and the partial beams 166B of the lower floor building unit 120, or is cut off after mounting.

  In the unit building 1G, a staircase space extending from the lower-floor building unit 20 to the upper-floor building unit 30 can be formed while securing the structural strength by the transfer beam 170.

  The auxiliary ceiling beam of the present invention may be a flat plate along the lower edge of the beam receiving surface at the column receiving portion of the building unit, or a flat plate along the side edge.

  41 to 44 show a guide collar 200 and an attachment 210 that are suitable for joining the end plates 122 of the joint ceiling beams 121 facing each other in the unit building 1A in the construction method V, for example. The guide collar 200 and the attachment 210 are positioned as follows when the bolt insertion holes 122A (the bolt insertion holes 110A of the spacer 110 are the same) provided in the end plate 122 of the opposite joint ceiling beam 121 are displaced. In combination, the high-strength bolt 111 can be inserted.

  As shown in FIG. 41, the guide collar 200 is shorter than the thread length of the high-strength bolt 111, and has a smaller outer diameter than the bolt insertion hole 122A of the end plate 122 and the bolt insertion hole 110A of the spacer 110. A hexagonal head 201 is provided on the proximal end side, a tapered taper 202 is provided on the distal end side thereof, and a through screw portion that is screwed onto the high-strength bolt 111 is provided. As shown in FIG. 42, the attachment 210 has a slit 211 that is smaller in diameter than the head 111A of the high-strength bolt 111 and allows the threaded portion of the high-strength bolt 111 to pass therethrough, and the threaded portion of the high-strength bolt 111 is passed through the slit 211. Thus, a rotation preventing portion 212 is provided that engages with the outer surface of the hexagon head 201 in the guide collar 200 screwed to the high-strength bolt 111 to prevent the guide collar 200 from rotating.

  (1) The guide collar 200 is screwed onto the outer periphery excluding the tip of the high-strength bolt 111 (FIG. 43A).

  (2) The tip of the high-strength bolt 111 is passed through the bolt insertion hole 122A provided in the end plate 122 of the opposite joint ceiling beam 121 (FIG. 43B). At this time, if the bolt insertion holes 122A of both end plates 122 and the bolt insertion holes 110A of the spacer 110 are displaced, the guide collar 200 only enters the bolt insertion holes 122A of the first end plate 122.

  (3) The nut 112 is fastened to the tip of the high strength bolt 111 protruding from the bolt insertion hole 122A of the end plate 122, and the high strength bolt 111 and the guide collar 200 are connected to the bolt insertion hole 122A of the two end plates 122 and the spacer 110. The bolt insertion holes 122A and 110A are coaxially aligned with each other (FIGS. 43C to 43E).

  (4) Remove the nut 112 from the high-strength bolt 111 (FIG. 43 (F)).

  (5) The high strength bolt 111 is loosened from the guide collar 200, and the attachment 210 is interposed between the head 111A of the high strength bolt 111 and the surface of the first end plate 122. The outer surface of the hexagon head 201 of the guide collar 200 is engaged with the anti-rotation portion 212 of the attachment 210 to prevent the guide collar 200 from rotating (FIGS. 44A and 44B).

  (6) The high-strength bolt 111 is tightened with respect to the attachment 210, and the guide collar is pulled out from the bolt insertion hole 122A of the end plate 122 and the bolt insertion hole 110A of the spacer 110 using the attachment 210 as a reaction force fulcrum (FIG. 44C ), (D)).

  (7) The guide collar 200 and the attachment 210 are removed from the bolt insertion hole 122A of the end plate 122 together with the high-strength bolt 111 (FIG. 44E).

  (8) Insert the high-strength bolt 111 (or the high-strength bolt 111 removed from the guide collar 200) through the aligned bolt insertion hole 122A of both end plates 122 and the bolt insertion hole 110A of the spacer 110, and the insertion end The nut 112 is finally tightened to join the end plates 122 of the jointed ceiling beam 121 facing each other.

  When the bolt insertion holes 122A (110A) are formed at three or more positions on the end plate 122 (spacer 110), the bolt insertion holes 122A (110A) at least at two positions, preferably at two diagonal positions. If the alignment operations (1) to (7) are performed using the guide collar 200 and the attachment 210, all the bolt insertion holes 122A (110A) can be aligned.

  Note that the alignment operation for a plurality of corresponding holes using the guide collar 200 and the attachment 210 is not limited to the construction method V, but is provided for each of two opposed beams (including plates) in the construction method II. It can also be employed in the alignment of bolt insertion holes and the alignment of bolt insertion holes provided in the opposite side walls of the pipe columns arranged in the construction method III.

  According to the present embodiment, by using the guide collar 200 and the attachment 210, the displacement of the bolt insertion holes 122A of the opposing joint ceiling beam 121 is corrected, the bolt insertion holes 122A are easily aligned, and high strength is achieved. The bolts 111 can be easily inserted into the bolt insertion holes 122A, and the joint ceiling beams 121 can be easily joined.

  Further, even when the spacer 110 is sandwiched between the opposing joint ceiling beams 121, the bolt insertion holes 122A and 110A provided in the joint ceiling beam 121 and the spacer 110 can be easily aligned.

  The building unit of the present invention may be such that three or more column-omitted building units have their column-omitted corner portions butt-joined at a column-omitted joint.

Next, a modified example of the construction method I will be described.
As shown in FIGS. 45 and 46, the unit building 1 is constructed such that a plurality of factory-produced building units 20 are installed on the foundation 10 so as to be horizontally adjacent to each other on the foundation 10 provided at the construction site. It is built and installed.

  As shown in FIG. 46, the building unit 20 is welded so as to bridge the section steel floor beam 22 to the column base 21F of the four square steel pipe columns 21, and the section steel ceiling beam 23 is attached to the column head of the column 21. It consists of a rectangular parallelepiped frame structure welded so as to span.

  47 and 48, the building unit 20 welds one end of a U-shaped connecting tool 22J to the outer surface of the column base 21F of the column 21, and the U-shaped cross section of the connecting tool 22J is welded. The floor beam 22 is welded and held to the connection tool 22J with the end portion of the floor beam 22 being held. At this time, the column lid is not provided at the lower end opening of the column base 21F of the column 21, and the floor beam 22 is pin-connected to the column base 21F of the column 21. However, a temporary lid 21 </ b> C used at the stage of manufacturing and transporting the building unit 20 can be provided at the lower end opening of the column base 21 </ b> F. Note that a column lid is provided at the upper end opening of the column head of the column 21, and the ceiling beam 23 is rigidly joined to the column head of the column 21.

(Modification 1)
In the foundation joint structure of the first modification of the building unit 20, the column base 21F of the pillar 21 is rigidly joined to the foundation 10 and fixed as shown in FIGS. Specifically, a steel foundation structure 223 is fixed to a concrete solid foundation 221 of the foundation 10 using anchor bolts 222, and the corner is welded to the substrate 223A of the foundation structure 223 and reinforced with an oblique member 223B. The lower end portion of the steel core 225 is inserted into the steel pipe support portion 224 and welded, and the core 225 is erected upward. The outer diameter dimension of the cross section of the steel pipe support portion 224 is the same as the outer diameter dimension of the column base 21F in this embodiment. When the building unit 20 is installed on the foundation 10, the core 225 of the foundation 10 is inserted into the hollow portion of the column base 21 </ b> F of the column 21 of the building unit 20, and the upper and lower two that penetrate the column base 21 </ b> F and the core 225 are inserted. The column base 21 </ b> F and the core 225 are joined by the high-strength bolt 231, the washer 232, and the nut 233. The core 225 closely contacts the inner surface of the column base 21F in the girder direction of the building unit 20 along the axial direction of the high-strength bolt 231 and has a gap between the inner surface of the column base 21A in the wife direction of the building unit 20. (FIG. 48).

  In addition, in the columns 21 of each unit building 20 that do not have the columns 21 of the building units 20 that are adjacent to each other in the girder direction, the column base 21F and the core 225 of the single column 21 are connected to a single high strength. It joins with the bolt 231 (FIG. 48 (B)). On the other hand, in the columns 21 of the two sets of building units 20 adjacent to each other in the girder direction, a spacer 234 is sandwiched between both column bases 21F, and these two sets of column bases 21F and The core 225 is joined (FIG. 49).

  In the above-described basic joint structure of the building unit 20, when the inner surface width of the column base 21F is d and the span of the upper and lower high-strength bolts 231 is e, in the girder direction of the building unit 20, as shown in FIG. D × f1 + e × f2> Ma is established among the vertical force f1, the horizontal force f2, and the bending moment Ma. Further, in the wife direction of the building unit 20, as shown in FIG. 50B, e × f> Mb is established between the horizontal force f and the bending moment Mb. That is, by fastening the core 225 that is in close contact with the inner surface of the column base 21F in the girder direction of the building unit 20 with the two upper and lower high-strength bolts 231, the column base 21F and the core 225 are both in the girder direction and the wife direction. Can be rigidly joined.

  In the above-described foundation joint structure of the building unit 20, the connection tool 22J for the floor beam 22 is welded to the outer side surface of the hollow portion in which the core 225 in the column base 21F of the column 21 is inserted. Construct reinforcement hardware.

According to the above-described foundation joint structure of the building unit 20, the following effects are exhibited.
(a) Since the column base 21F of the building unit 20 is rigidly joined to the foundation 10, the rotation of the column base 21F with respect to the foundation 10 is suppressed, and the horizontal rigidity of the building can be improved. In order to increase the horizontal rigidity of the building, it is not necessary to reinforce the cross section of the column 21, and it is not necessary to add a middle column or a horizontal brace, thereby increasing the degree of freedom of the building plan and reducing the cost.

  (b) The core 225 provided on the foundation 10 is inserted into the hollow portion of the column base 21F, and the column base 21F and the core 225 are brought into close contact with each other by the high-strength bolts 231 penetrating the column base 21F and the core 225. . Thereby, the column base 21F and the core 225 can be rigidly joined in both the girder direction in which the column base 21F and the core 225 are in close contact with each other and the wife direction in which the column base 21F and the core 225 pass through the gap. Therefore, the column base 21 </ b> F can be simply rigidly joined to the foundation 10.

  (c) Reinforcement hardware 22J was joined to the outer surface of the hollow portion into which the core 225 of the column base 21F was inserted. Thereby, the reinforcement hardware 22J suppresses the rigidity reduction of the column base 21F and prevents its local deformation.

  (d) The connection tool 22J for the floor beam 22 provided on the column base 21F can be used as the reinforcing hardware 22J of the above (c).

  (e) By pinning the floor beam 22 to the column base 21F, the horizontal rigidity of the building can be secured according to the above-mentioned (a) while simplifying the framework of the building unit 20.

  In addition, by the foundation joining structure of the building unit 20 mentioned above, it was recognized that the horizontal rigidity of the building was 1.65 times that of the conventional example (one in which the column base 21F was pin-joined to the foundation 10).

(Modification 2)
FIG. 51 is a basic joint structure of Modification 2 for the building unit 20 constituting the piloti (including a garage or the like), and the building unit 20 does not have the floor beam 22 on at least one side surface of the frame structure. The lower end portion of the steel pipe support 241 is planted on the concrete solid base 221 of the foundation 10, and the lower end portion of the steel core 225 is inserted into the steel pipe support 241 and welded, and the core 225 is moved upward. Standing toward The steel pipe support 241 does not accompany the side of the building unit 20 that does not have the floor beam 22 like the substrate 223A and the diagonal member 223B of FIG. It is strengthened by providing a locking projection 241A or by making the outer diameter of the cross section larger than the outer diameter of the column base 21F. When the building unit 20 is installed on the foundation 10, the core 225 of the foundation 10 is inserted into the hollow portion of the column base 21 </ b> F of the column 21 of the building unit 20, and the upper and lower two that penetrate the column base 21 </ b> F and the core 225 are inserted. The column base 21 </ b> F and the core 225 are joined by the high-strength bolt 231, the washer 232, and the nut 233. The core 225 is in close contact with the inner surface of the column base 21F in the girder direction of the building unit 20 along the axial direction of the high-strength bolt 231 and has a gap between the inner surface of the column base 21F in the wife direction of the building unit 20. (FIG. 48).

  In the basic joint structure of the building unit 20 described above, the outer side surface of the hollow portion into which the core 225 of the column base 21F is inserted is a short length similar to the connection / reinforcement hardware 22J described above, and the inner side of the building unit 20. Reinforcing hardware with a small overhanging dimension can be joined. The lowering of the rigidity of the column base 21F is suppressed to prevent local deformation thereof.

  FIG. 52 shows a modified use example of the core 51 provided on the steel pipe support 224 (or the steel pipe support 241) of the foundation 10 described above. As shown in FIG. 53, the core 251 is welded by sandwiching two steel thick plates 253A and 253B between two steel plate 252A and 252B. , 252B, and bolt insertion holes are formed between the two thick plates 253A, 253B. The lower end of the core 251 is inserted into the steel pipe support 224 (or the steel pipe support 241) of the foundation 10, and two upper and lower high-strength bolts 254 passing through the steel pipe support 224 and the core 251, a washer, The steel pipe support 224 and the core 251 are joined by nuts, and the core 251 is inserted into the hollow portion of the column base 21F of the column 21 of the building unit 20, and the upper and lower two penetrating the column base 21F and the core 251 are inserted. The column base 21F and the core 251 are joined by the high-strength bolt 255, washer, and nut. The core 251 is in close contact with the inner surface of the steel pipe support portion 224 and the column base 21F in the girder direction of the building unit 20 along the axial direction of the high strength bolts 254 and 255, and is supported in the steel pipe direction in the wife direction of the building unit 20. A gap is interposed between the portion 224 and the inner surface of the column base 21F (FIG. 52).

(Modification 3)
54 and FIG. 55 show the foundation joint portion of the building unit 20 of the third modification, and the foundation 260 is the column base 21F of one column 21 of the building unit 20 located at the outer peripheral corner portion of the unit building 1. It is rigidly joined and fixed.

  As shown in FIG. 55, the foundation 260 fixes the steel foundation structure 263 using anchor bolts 262 fixed to the embedded plate 261A of the concrete foundation 261 made of concrete. As shown in FIG. 56, the foundation structure 263 includes bolt fixing plates 263 </ b> B provided at three positions on the L-shaped bottom portion of the L-shaped main body portion 263 </ b> A in plan view, and anchor bolts on the solid foundation 261. 262 is solidified. In the foundation structure 263, a plurality of (for example, four) sleeve-shaped steel fittings 264 are fixed to the upper portion of the main body 263A by welding, and the fitting holes 264 are provided with attachment holes 264A. On the other hand, each of a plurality of locations (for example, four locations) in the hollow lower end portion of the column base 21F of the column 21 of the building unit 20 is fixed by welding, and each mounting bracket 265 has a screw hole 265A. It is done. Accordingly, when the building unit 20 is installed on the foundation 260, the screw holes 265A of the mounting bracket 265 of the column base 21F are aligned with the mounting holes 264A of the mounting hardware 264 of the foundation 260, and the mounting holes 264A of the mounting hardware 264 are aligned. By screwing the inserted high-strength bolt 266 into the screw hole 265A of the attachment fitting 265, the column base 21F is rigidly joined to the attachment hardware 264 of the foundation 260.

  FIG. 57 shows a modification of the foundation joint portion of the building unit 20, and the column bases 21 </ b> F of the two pillars 21 of the two building units 20 adjacent to each other in the unit building 10 are rigidly joined to the foundation 260. To fix. The base 260 in FIG. 57 differs from the base 260 in FIG. 54 in that the base structure 263 has a T-shaped intersection at the T-shaped bottom of the T-shaped main body 263A as shown in FIG. The bolt fixing plate 263 </ b> B provided at each of the four positions including is fixed on the solid foundation 261 by the anchor bolt 262.

  FIG. 59 shows a modification of the foundation joint portion of the building unit 20, in which the column bases 21F of the three columns 21 of the three building units 20 adjacent to each other in the unit building 10 are rigidly joined to the foundation 260. To fix. The base 260 in FIG. 59 differs from the base 260 in FIG. 54 as a base structure 263, as shown in FIG. 60, at the intersection of the deformed cross at the deformed cross-shaped bottom of the main body 263A having a deformed cross shape in plan view. The bolt fixing plate 263 </ b> B provided at each of the five positions including is fixed on the solid foundation 261 by the anchor bolt 262.

  FIG. 61 shows a modification of the foundation joint portion of the building unit 20, and the column bases 21F of the four columns 21 of the four building units 20 adjacent to each other in the unit building 1 are rigidly joined to the foundation 260. To fix. The foundation 260 in FIG. 61 is different from the foundation 260 in FIG. 54 in that the foundation structure 263 includes a crossing portion of a cross at the bottom of the cross shape of the main body 263A having a cross shape in plan view as shown in FIG. The bolt fixing plate 263 </ b> B provided at each position is fixed on the solid foundation 261 by the anchor bolt 262.

  Here, a guide pin 270 is used as a means for aligning the screw hole 265A of the mounting bracket 265 of the column base 21F with respect to the mounting hole 264A of the mounting hardware 264 of the foundation 260. As shown in FIG. 63, the guide pin 270 includes a male thread portion 271 that is screwed into the screw hole 265A of the mounting bracket 265 of the column base 21F, and a support shaft that is continuous with the male thread portion via an incomplete thread portion 272. 273 and a collar-shaped guide portion 274 loaded on the outer periphery of the support shaft 273. The guide pin 270 supports the collar-shaped guide part 274 to prevent it from coming between the large-diameter retaining part 275 that is forged at the tip of the support shaft 273 and the incomplete screw part 272. The maximum outer diameter of the collar-shaped guide part 274 is slightly larger than the outer diameters of the male thread part 271 and the incomplete thread part 272, and the outer periphery of the collar-shaped guide part 274 to the outer periphery of the distal end of the support shaft 273 are continuously tapered. The tapered portion 276 is formed to improve the insertion property into the mounting hole 264A. A lubricating oil groove 274A is formed on the inner periphery of the collar-shaped guide portion 274, and a clearance is formed between the inner periphery of the collar-shaped guide portion 274 and the outer periphery of the support shaft 273. Smooth rotation with respect to the support shaft 273 is possible. A tool engagement hole 273A such as a hexagonal hole is provided at the distal end surface of the support shaft 273, and the male thread portion 271 is attached to the screw hole 265A of the mounting bracket 265 by a rotation operation applied to the tool engaged with the tool engagement hole 273A. Make it detachable.

Therefore, the joining procedure of the column base 21F to the foundation 260 is performed as follows.
(1) Immediately before the installation of the building unit 20 to the foundation 260, as shown in FIG. 64, using the tool engaged with the tool engaging hole 273A of the guide pin 270, the threaded portion 271 of the guide pin 270 is pillared. 21 is screwed into the screw hole 65A of the mounting bracket 65 provided on the column base 21A.

  (2) The collar-shaped guide portion 274 of the guide pin 270 screwed into the screw hole 265A of the column base 21F is inserted into the mounting hole 264A of the mounting hardware 264 of the foundation 260 as shown in FIG. 64, and the screw hole 265A is attached. Align with hole 264A.

  (3) Using a tool engaged with the tool engagement hole 273A of the guide pin 270, the guide pin 270 screwed into the screw hole 265A of the column base 21F is removed from the screw hole 265A and the mounting hole 264A. The high-strength bolt 266 inserted into the mounting hole 264A after removal is temporarily fixed to the screw hole 265A of the column base 21F.

  (4) The high-strength bolts 266 inserted through all the mounting holes 264A of the mounting hardware 264 of the foundation 260 are finally tightened into the screw holes 265A of the column base 21F.

  A guide pin 270A shown in FIG. 65 is a modification of the guide pin 270 shown in FIG. 63. The guide pin 270 has a straight outer periphery that is continuous over substantially the entire axial direction of the support shaft 273 by removing the large-diameter retaining portion 275 of the guide pin 270. An annular groove 275A was provided on the distal end side, and a retaining ring 275B was engaged with the annular groove 275A. The guide pin 270 </ b> A supports the collar-shaped guide portion 274 so as not to come off between the retaining ring 275 </ b> B provided on the support shaft 273 and the incomplete screw portion 272.

  According to the above-described foundation joint structure of the building unit 20, the screw hole 265 </ b> A of the attachment fitting 265 provided on the column base 21 </ b> F is aligned with the attachment hole 264 </ b> A of the attachment hardware 264 provided on the foundation 260, and the high strength bolt 266. Thus, the mounting bracket 265 was joined to the mounting hardware 264. Therefore, the column base 21F can be simply rigidly joined to the foundation 260.

  Further, by using the guide pin 270, the displacement of the mounting hole 264A of the mounting hardware 264 provided on the foundation 260 and the screw hole 265A of the mounting bracket 265 provided on the column base 21F is corrected, and the mounting bracket 265 The screw hole 265A can be easily aligned with the mounting hole 264A of the mounting hardware 264, and the high-strength bolt 266 can be easily inserted into the mounting hole 264A and screwed into the screw hole 265A.

(Modification 4)
FIG. 66 shows a basic joint structure of Modification 4 for the building unit 20 constituting the piloti (including a garage or the like), and the building unit 20 has a floor on at least one side of the framework structure as in Modification 2. There is no beam 22. The steel foundation structure 280 is fixed to the anchor bolt 262 fixed to the embedding plate 261A of the solid foundation 261 in the foundation 260. As for the foundation structure 280, a plate-shaped steel fitting 282 is fixed to the upper portion of the main body 281 fixed to the anchor bolt 262 on the solid foundation 261 by welding, and a plurality of (for example, four) pieces are attached to the fitting 282. Mounting holes 282A are provided. On the other hand, as in the third modification, mounting brackets 265 are fixed to each of a plurality of locations (for example, four locations) in the hollow lower end portion of the column base 21F of the column 21 of the building unit 20 by welding. A screw hole 265A is provided in the mounting bracket 265. Therefore, when the building unit 20 is installed on the foundation 260, the screw holes 265A of the mounting bracket 265 of the column base 21F are provided in the mounting holes 282A of the mounting hardware 282 of the foundation 260 by using the guide pins 270 of the third modification. The column base 21F is rigidly joined to the mounting hardware 282 of the foundation 260 by aligning and screwing the high-strength bolt 266 inserted through the mounting hole 282A of the mounting hardware 282 into the screw hole 265A of the mounting bracket 265.

  The base structure 280 is not limited to the body 281 fixed to the anchor bolt 262 fixed to the embedding plate 261A of the solid foundation 261 in the foundation 260, but the main body 281 is implanted in the solid foundation 261, and the main body 281 It is good also as what equips the planting part to the solid foundation 261 of 281 with the latching protrusion similar to the latching protrusion 241A provided in the support body 241 in the modification 2.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention. For example, in implementation of this invention, the floor beam of a building unit may be rigidly joined to a column base. The building unit is not limited to a frame structure, and may be a wall structure. Further, the floor frame and ceiling frame of the building unit are not limited to those having a quadrilateral shape.

  In the unit building 1 to which the present invention is applied, the construction method I (foundation-column rigid joint structure) improves the horizontal rigidity of the first-floor building unit, and the construction method II (upper and lower beam joint structure) is the horizontal of the adjacent building unit. Stiffness and vertical rigidity of the upper-floor building unit are improved. Construction method III (adjacent column connection structure) improves the horizontal rigidity of the adjacent building unit. Construction method IV (diagonal reinforcement structure) improves the horizontal rigidity of the building unit. To improve. When selecting and adopting construction methods I to IV for unit building 1, considering the cost-effectiveness of each construction method, plan obstacles, etc., for each type of unit building 1 (a plurality of building units in plan view of unit building 1) Selection priority of construction methods I to IV (two types: single row arrangement type in which only one row is arranged in the girder direction or wife direction, and multiple row arrangement type in which two or more building units are arranged in the girder direction or wife direction) If the order is determined, it is as shown in FIG.

  That is, in the unit building 1 of the one-row arrangement type, the construction method IV is preferentially adopted on the outer wall side because the influence of the wall plan failure due to the construction method IV is small, and the construction method I is additionally adopted when the rigidity is insufficient.

  Also, in the unit building 1 of the single-row arrangement type, because the influence of the wall plan failure due to the construction method IV is large on the indoor side, construction method II is given priority and construction method I and further construction method IV are added when rigidity is insufficient. adopt.

  In the multi-row arrangement type unit building 1, on the outer wall side, the construction method III is inexpensive and there is no plan failure, so this is preferentially adopted, and when the rigidity is insufficient, construction method IV and further construction method I are additionally adopted. .

  Further, in the multi-row arrangement type unit building 1, all the construction methods I to IV can be adopted indoors, and construction method II, construction method III, construction method I, construction method IV can be adopted in this order.

FIG. 1 is a perspective view showing a unit building. FIG. 2 is a schematic perspective view showing a unit building. FIG. 3 is a perspective view showing the building unit. FIG. 4 is a schematic front view showing a building unit to which construction method I is applied. FIG. 5 is a cross-sectional view showing a specific structure of the construction method I. FIG. 6 is a schematic front view showing a unit building to which construction method II is applied. FIG. 7 shows a specific structure of construction method II, where (A) is a front view and (B) is a cross-sectional view. 8A and 8B show the principle of strengthening the rigidity of the beam of construction method II, where FIG. 8A is a schematic diagram showing the deformation state of the beam, FIG. 8B is a schematic diagram showing a beam unit model, and FIG. 8C is a schematic diagram showing a frame structure model. FIG. 9A and 9B show the principle of rigidity enhancement of the unit frame of the construction method II, FIG. 9A is a schematic diagram showing a deformed state of a beam, and FIG. 9B is a schematic diagram showing a rigid frame model. FIG. 10 is a schematic diagram showing a joint structure by the construction method III of adjacent building units. FIG. 11 is a cross-sectional view showing a main part of FIG. FIG. 12 is a schematic diagram illustrating an example of joining of building units. FIG. 13 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is a cross-sectional view taken along line BB of (A). FIG. 14 is a perspective view showing a perforated spacer. FIG. 15 shows a modified example of the construction method III, (A) is a plan view showing a joint portion of a lower floor building unit, and (B) is a sectional view taken along line BB in (A). FIG. 16 shows a modification of construction method III, (A) is a plan view showing a joint portion of a lower-floor building unit, and (B) is a sectional view taken along line BB of (A). FIG. 17 shows a building unit to which construction method IV is applied, (A) is a front view showing the lowest floor building unit, and (B) is a front view showing the upper floor building unit. FIG. 18 is a schematic diagram showing the principle of rigidity enhancement of the frame of the construction method IV. FIG. 19 is a schematic diagram showing an example of strengthening the rigidity of the frame of construction method IV. FIG. 20 is a front view showing an example of attaching diagonal members of the construction method IV. 21A and 21B show the lower end attachment portion of the diagonal member, where FIG. 21A is a front view and FIG. 21B is a sectional view. FIG. 22 is a cross-sectional view showing an intermediate portion of the ceiling beam to which the upper end portion of the diagonal member is attached. FIG. 23 shows a unit building of Example 1 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, (B) is a schematic plan view after reinforcement with a joint ceiling beam, and (C) is It is a schematic side view of (B). FIG. 24 is a plan view showing a joined state of both building units. FIG. 25 is a front view showing both building units before joining. FIG. 26 shows a joint portion between both building units, (A) is a front view in a state in which the lip portion of the beam is omitted, and (B) is a side view. FIG. 27 shows a unit building of Example 2 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a schematic plan view after reinforcement with a joint ceiling beam. FIG. 28 shows a unit building of Example 3 according to construction method V, (A) is a schematic plan view before reinforcement with a joint ceiling beam, and (B) is a schematic plan view after reinforcement with a joint ceiling beam. FIG. 29 is a front view showing a joined state of the building unit of the fourth embodiment according to construction method V. FIG. FIG. 30 is a side view of FIG. FIG. 31 shows a unit building of Example 5, (A) is a schematic plan view before reinforcement with a cross beam, (B) is a schematic plan view after reinforcement with a cross beam, and (C) is a schematic side view of (B). FIG. FIG. 32 is a perspective view showing both building units before installing the bridge beam. FIG. 33 is a side view showing the receiving beam and the column receiving portion. FIG. 34 is a cross-sectional view taken along the line XXXIV-XXXIV in FIG. FIGS. 35A and 35B show a unit building of Example 6 according to construction method V, where FIG. 35A is a schematic plan view before reinforcement with a bridge beam, and FIG. 35B is a schematic plan view after reinforcement with a bridge beam. FIG. 36 is a perspective view showing both building units before installing the crossing beam. FIG. 37 is a cross-sectional view taken along line XXXVII-XXXVII in FIG. FIG. 38 shows a unit building of Example 7, (A) is a schematic plan view before reinforcement with a bridge beam, and (B) is a schematic plan view after reinforcement with a bridge beam. FIG. 39 is a perspective view showing both building units before installing the crossing beam. FIG. 40 is a cross-sectional view taken along line XXXX-XXXX in FIG. 38 (B) showing a unit building in which a cross beam is installed. 41 is a perspective view showing a guide collar used in the construction method V. FIG. FIG. 42 is a perspective view showing an attachment used in the construction method V. FIG. FIG. 43 is a schematic diagram showing a guide color pull-in procedure in the construction method V. FIG. 44 is a schematic diagram showing a guide color drawing procedure in the construction method V. FIG. 45 is a schematic plan view of a unit building of Modification 1 according to Construction Method I. FIG. 46 shows a building unit, (A) is a side view, and (B) is a schematic diagram. FIG. 47 is a cross-sectional view showing a column and a floor beam of a building unit. 48A and 48B show the basic joint structure of a building unit, where FIG. 48A is a longitudinal sectional view and FIG. 48B is a plan view. FIG. 49 is a plan view showing a horizontal connection structure of adjacent building units. 50A and 50B show a joining structure of a column base and a core of a building unit, in which FIG. 50A is a cross-sectional view in the girder direction and FIG. FIG. 51 is a longitudinal sectional view showing a basic joint structure of a building unit of Modification 2 according to Construction Method I. 52A and 52B show a joint structure between a column base and a core of a building unit, where FIG. 52A is a longitudinal sectional view and FIG. 52B is a plan view. 53 shows a core, (A) is a longitudinal sectional view, and (B) is a plan view. FIG. 54 is a plan view showing a basic joint portion of a building unit of Modification 3 according to Construction I. FIG. FIG. 55 is a longitudinal sectional view showing the basic joint structure of the building unit of Modification 3 according to Construction Method I. FIG. 56 shows a basic structure, (A) is a plan view, and (B) is a vertical view. FIG. 57 is a plan view showing a modification of the foundation joint of the building unit. FIG. 58 shows a basic structure, (A) is a plan view, and (B) is a longitudinal sectional view. FIG. 59 is a plan view showing a modification of the foundation joint of the building unit. FIG. 60 is a plan view showing the foundation structure. FIG. 61 is a plan view showing a modification of the foundation joint of the building unit. FIG. 62 is a plan view showing the foundation structure. FIG. 63 is a cross-sectional view showing a guide pin. FIG. 64 is a perspective view showing the process of joining the column base to the foundation. FIG. 65 is a cross-sectional view showing a modification of the guide pin. FIG. 66 is a longitudinal sectional view showing a basic joint structure of a building unit of Modification 4 according to Construction Method I. FIG. 67 is a chart showing the priority order of construction methods I to IV in the unit building.

Explanation of symbols

1, 1A-1G Unit building 2, 3 Column omission joint 20 Building unit 21 Column 22 Floor beam 23 Ceiling beam
23L joint piece
110 Spacer 120 Column omitted building unit 121 Joint ceiling beam
122 End plate
123 Notch 161 Auxiliary ceiling beam 162 Receiving beam 163 Receiving portion 170 Crossing beam
171 End plate
172 Stiffener

Claims (9)

Rigidly join the column base of the building unit that joins the column, floor beam and ceiling beam,
Column omission corners determined for each of a plurality of adjacent building units are arranged to face each other at the column omission joint,
The ceiling beam crossed and arranged at the corner where the column is omitted in the same plane including the column-omitted joint of adjacent building units is used as the joint ceiling beam.
It is a unit building that is formed by joining facing joint beams facing each other at the column omission joints of adjacent building units,
In each of the building units adjacent to each other, an end plate is welded to the end face on the side of the column omitted corner portion of the jointed ceiling beam, and the other members that are arranged to intersect with the jointed ceiling beam and the column omitted corner portion. joint piece provided on the ceiling beams, are welded to the ends of the joint ceiling beams, the joint piece side of some end plates notched cutout portion and is Ru unit buildings along the periphery. The unit building according to claim 1 , wherein the joint ceiling beam is made of a C-shaped steel with a lip. The unit building according to claim 1 or 2 , wherein end plates of the jointed ceiling beams of the adjacent building units are joined to each other. The unit building according to claim 3 , wherein the end plates are joined to each other through a spacer. Rigidly join the column base of the building unit that joins the column, floor beam and ceiling beam,
Column omission corners determined for each of a plurality of adjacent building units are arranged to face each other at the column omission joint,
The ceiling beam crossed at the corner where the column is omitted in the same plane including the column-omitted joints of adjacent building units is an auxiliary ceiling beam having a lower cross-sectional strength than other ceiling beams,
Extending from the side of the auxiliary ceiling beam of the building unit on one side of the column-omitted joint to the side of the auxiliary ceiling beam of the building unit on the other side, providing a passing beam attached to these auxiliary ceiling beams, One end of the beam is joined to the receiving part provided in the receiving beam joined to the column of the building unit on one side, and the other part of the crossing beam is provided to the receiving beam joined to the column of the building unit on the other side A unit building joined to
A unit building comprising L-shaped cross-section beams along the lower and side edges of the receiving portion provided on the receiving beam in which the auxiliary ceiling beam is joined to the column. The unit building according to claim 5 , wherein the receiving portion provided on the receiving beam joined to the column has a tapered shape that expands upward. The unit building according to claim 5 or 6 , wherein the crossing beam is provided with end plates at both ends thereof, and a stiffener is provided at a central portion in the longitudinal direction. The unit building according to claim 7 , wherein the cross beam is provided with a lip portion on both sides, and a stiffener is provided on the lip portion. The unit building according to claim 8 , wherein end plates of other ceiling beams joined to the auxiliary ceiling beam are joined to both side lip portions of the crossing beam.

Images